Home / 4,938.52-7,402.76-2,129.18

Finding the Fourth Proportional to 4,938.52, 7,402.76 and 2,129.18

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Solution

The fourth proportional to 4,938.52, 7,402.76 and 2,129.18 is: 3,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.52 : 7,402.76 = 2,129.18 : x
  2. Step 2: Convert to fraction form
    4,938.52/7,402.76 = 2,129.18/x
  3. Step 3: Cross multiply
    4,938.52x = 7,402.76 × 2,129.18
  4. Step 4: Simplify right side
    4,938.52x = 15,761,808.54
  5. Step 5: Solve for x
    x = 15,761,808.54/4,938.52
  6. Step 6: Final answer
    x = 3,191.61

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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.