Home / 5,077.71-7,618.38-3,127.62

Finding the Fourth Proportional to 5,077.71, 7,618.38 and 3,127.62

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Solution

The fourth proportional to 5,077.71, 7,618.38 and 3,127.62 is: 4,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.71 : 7,618.38 = 3,127.62 : x
  2. Step 2: Convert to fraction form
    5,077.71/7,618.38 = 3,127.62/x
  3. Step 3: Cross multiply
    5,077.71x = 7,618.38 × 3,127.62
  4. Step 4: Simplify right side
    5,077.71x = 23,827,397.66
  5. Step 5: Solve for x
    x = 23,827,397.66/5,077.71
  6. Step 6: Final answer
    x = 4,692.55

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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.