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Finding the Fourth Proportional to 3,605.31, 5,407.97 and 1,658.88

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Solution

The fourth proportional to 3,605.31, 5,407.97 and 1,658.88 is: 2,488.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.31 : 5,407.97 = 1,658.88 : x
  2. Step 2: Convert to fraction form
    3,605.31/5,407.97 = 1,658.88/x
  3. Step 3: Cross multiply
    3,605.31x = 5,407.97 × 1,658.88
  4. Step 4: Simplify right side
    3,605.31x = 8,971,164.98
  5. Step 5: Solve for x
    x = 8,971,164.98/3,605.31
  6. Step 6: Final answer
    x = 2,488.32

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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.