Home / 3,421.05-5,132.04-1,572.13

Finding the Fourth Proportional to 3,421.05, 5,132.04 and 1,572.13

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Solution

The fourth proportional to 3,421.05, 5,132.04 and 1,572.13 is: 2,358.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.05 : 5,132.04 = 1,572.13 : x
  2. Step 2: Convert to fraction form
    3,421.05/5,132.04 = 1,572.13/x
  3. Step 3: Cross multiply
    3,421.05x = 5,132.04 × 1,572.13
  4. Step 4: Simplify right side
    3,421.05x = 8,068,234.05
  5. Step 5: Solve for x
    x = 8,068,234.05/3,421.05
  6. Step 6: Final answer
    x = 2,358.41

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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.