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Finding the Fourth Proportional to 7,637.77, 10,539.77 and 4,280.55

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Solution

The fourth proportional to 7,637.77, 10,539.77 and 4,280.55 is: 5,906.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,637.77 : 10,539.77 = 4,280.55 : x
  2. Step 2: Convert to fraction form
    7,637.77/10,539.77 = 4,280.55/x
  3. Step 3: Cross multiply
    7,637.77x = 10,539.77 × 4,280.55
  4. Step 4: Simplify right side
    7,637.77x = 45,116,034.91
  5. Step 5: Solve for x
    x = 45,116,034.91/7,637.77
  6. Step 6: Final answer
    x = 5,906.97

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1.5x scale

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.