Home / 4,760.92-7,139.10-2,787.12

Finding the Fourth Proportional to 4,760.92, 7,139.10 and 2,787.12

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Solution

The fourth proportional to 4,760.92, 7,139.10 and 2,787.12 is: 4,179.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,760.92 : 7,139.10 = 2,787.12 : x
  2. Step 2: Convert to fraction form
    4,760.92/7,139.10 = 2,787.12/x
  3. Step 3: Cross multiply
    4,760.92x = 7,139.10 × 2,787.12
  4. Step 4: Simplify right side
    4,760.92x = 19,897,528.39
  5. Step 5: Solve for x
    x = 19,897,528.39/4,760.92
  6. Step 6: Final answer
    x = 4,179.35

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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.