Home / 7,139.73-9,842.49-4,898.10

Finding the Fourth Proportional to 7,139.73, 9,842.49 and 4,898.10

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Solution

The fourth proportional to 7,139.73, 9,842.49 and 4,898.10 is: 6,752.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.73 : 9,842.49 = 4,898.10 : x
  2. Step 2: Convert to fraction form
    7,139.73/9,842.49 = 4,898.10/x
  3. Step 3: Cross multiply
    7,139.73x = 9,842.49 × 4,898.10
  4. Step 4: Simplify right side
    7,139.73x = 48,209,500.27
  5. Step 5: Solve for x
    x = 48,209,500.27/7,139.73
  6. Step 6: Final answer
    x = 6,752.29

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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.