Home / 3,587.60-5,385.92-3,421.41

Finding the Fourth Proportional to 3,587.60, 5,385.92 and 3,421.41

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Solution

The fourth proportional to 3,587.60, 5,385.92 and 3,421.41 is: 5,136.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.60 : 5,385.92 = 3,421.41 : x
  2. Step 2: Convert to fraction form
    3,587.60/5,385.92 = 3,421.41/x
  3. Step 3: Cross multiply
    3,587.60x = 5,385.92 × 3,421.41
  4. Step 4: Simplify right side
    3,587.60x = 18,427,423.44
  5. Step 5: Solve for x
    x = 18,427,423.44/3,587.60
  6. Step 6: Final answer
    x = 5,136.43

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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.