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Finding the Fourth Proportional to 5,610.71, 8,406.75 and 3,412.79

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Solution

The fourth proportional to 5,610.71, 8,406.75 and 3,412.79 is: 5,113.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,610.71 : 8,406.75 = 3,412.79 : x
  2. Step 2: Convert to fraction form
    5,610.71/8,406.75 = 3,412.79/x
  3. Step 3: Cross multiply
    5,610.71x = 8,406.75 × 3,412.79
  4. Step 4: Simplify right side
    5,610.71x = 28,690,472.33
  5. Step 5: Solve for x
    x = 28,690,472.33/5,610.71
  6. Step 6: Final answer
    x = 5,113.52

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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.