Home / 3,728,998.76-5,143,102.20-2,422,671.12

Finding the Fourth Proportional to 3,728,998.76, 5,143,102.20 and 2,422,671.12

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Solution

The fourth proportional to 3,728,998.76, 5,143,102.20 and 2,422,671.12 is: 3,341,391.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728,998.76 : 5,143,102.20 = 2,422,671.12 : x
  2. Step 2: Convert to fraction form
    3,728,998.76/5,143,102.20 = 2,422,671.12/x
  3. Step 3: Cross multiply
    3,728,998.76x = 5,143,102.20 × 2,422,671.12
  4. Step 4: Simplify right side
    3,728,998.76x = 12,460,045,167,148.46
  5. Step 5: Solve for x
    x = 12,460,045,167,148.46/3,728,998.76
  6. Step 6: Final answer
    x = 3,341,391.61

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.