Home / 4,955.20-7,432.81-1,257.42

Finding the Fourth Proportional to 4,955.20, 7,432.81 and 1,257.42

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Solution

The fourth proportional to 4,955.20, 7,432.81 and 1,257.42 is: 1,886.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,955.20 : 7,432.81 = 1,257.42 : x
  2. Step 2: Convert to fraction form
    4,955.20/7,432.81 = 1,257.42/x
  3. Step 3: Cross multiply
    4,955.20x = 7,432.81 × 1,257.42
  4. Step 4: Simplify right side
    4,955.20x = 9,346,160.81
  5. Step 5: Solve for x
    x = 9,346,160.81/4,955.20
  6. Step 6: Final answer
    x = 1,886.13

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Similar ratio
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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.