Home / 5,520.49-8,278.13-1,624.12

Finding the Fourth Proportional to 5,520.49, 8,278.13 and 1,624.12

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Solution

The fourth proportional to 5,520.49, 8,278.13 and 1,624.12 is: 2,435.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.49 : 8,278.13 = 1,624.12 : x
  2. Step 2: Convert to fraction form
    5,520.49/8,278.13 = 1,624.12/x
  3. Step 3: Cross multiply
    5,520.49x = 8,278.13 × 1,624.12
  4. Step 4: Simplify right side
    5,520.49x = 13,444,659.86
  5. Step 5: Solve for x
    x = 13,444,659.86/5,520.49
  6. Step 6: Final answer
    x = 2,435.41

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.