Home / 3,887.46-5,364.63-2,118.96

Finding the Fourth Proportional to 3,887.46, 5,364.63 and 2,118.96

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Solution

The fourth proportional to 3,887.46, 5,364.63 and 2,118.96 is: 2,924.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.46 : 5,364.63 = 2,118.96 : x
  2. Step 2: Convert to fraction form
    3,887.46/5,364.63 = 2,118.96/x
  3. Step 3: Cross multiply
    3,887.46x = 5,364.63 × 2,118.96
  4. Step 4: Simplify right side
    3,887.46x = 11,367,436.38
  5. Step 5: Solve for x
    x = 11,367,436.38/3,887.46
  6. Step 6: Final answer
    x = 2,924.13

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.