Home / 3,909.12-5,861.52-1,602.24

Finding the Fourth Proportional to 3,909.12, 5,861.52 and 1,602.24

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Solution

The fourth proportional to 3,909.12, 5,861.52 and 1,602.24 is: 2,402.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.12 : 5,861.52 = 1,602.24 : x
  2. Step 2: Convert to fraction form
    3,909.12/5,861.52 = 1,602.24/x
  3. Step 3: Cross multiply
    3,909.12x = 5,861.52 × 1,602.24
  4. Step 4: Simplify right side
    3,909.12x = 9,391,561.80
  5. Step 5: Solve for x
    x = 9,391,561.80/3,909.12
  6. Step 6: Final answer
    x = 2,402.47

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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.