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Finding the Fourth Proportional to 5,168.74, 7,753.63 and 1,657.87

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Solution

The fourth proportional to 5,168.74, 7,753.63 and 1,657.87 is: 2,486.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.74 : 7,753.63 = 1,657.87 : x
  2. Step 2: Convert to fraction form
    5,168.74/7,753.63 = 1,657.87/x
  3. Step 3: Cross multiply
    5,168.74x = 7,753.63 × 1,657.87
  4. Step 4: Simplify right side
    5,168.74x = 12,854,502.28
  5. Step 5: Solve for x
    x = 12,854,502.28/5,168.74
  6. Step 6: Final answer
    x = 2,486.97

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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.