Home / 5,139.73-7,710.56-1,630.62

Finding the Fourth Proportional to 5,139.73, 7,710.56 and 1,630.62

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Solution

The fourth proportional to 5,139.73, 7,710.56 and 1,630.62 is: 2,446.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.73 : 7,710.56 = 1,630.62 : x
  2. Step 2: Convert to fraction form
    5,139.73/7,710.56 = 1,630.62/x
  3. Step 3: Cross multiply
    5,139.73x = 7,710.56 × 1,630.62
  4. Step 4: Simplify right side
    5,139.73x = 12,572,954.79
  5. Step 5: Solve for x
    x = 12,572,954.79/5,139.73
  6. Step 6: Final answer
    x = 2,446.23

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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.