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Finding the Fourth Proportional to 5,761.47, 8,641.52 and 3,390.98

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Solution

The fourth proportional to 5,761.47, 8,641.52 and 3,390.98 is: 5,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,761.47 : 8,641.52 = 3,390.98 : x
  2. Step 2: Convert to fraction form
    5,761.47/8,641.52 = 3,390.98/x
  3. Step 3: Cross multiply
    5,761.47x = 8,641.52 × 3,390.98
  4. Step 4: Simplify right side
    5,761.47x = 29,303,161.33
  5. Step 5: Solve for x
    x = 29,303,161.33/5,761.47
  6. Step 6: Final answer
    x = 5,086.06

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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.