Home / 5,221.30-7,204.89-3,125.38

Finding the Fourth Proportional to 5,221.30, 7,204.89 and 3,125.38

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Solution

The fourth proportional to 5,221.30, 7,204.89 and 3,125.38 is: 4,312.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.30 : 7,204.89 = 3,125.38 : x
  2. Step 2: Convert to fraction form
    5,221.30/7,204.89 = 3,125.38/x
  3. Step 3: Cross multiply
    5,221.30x = 7,204.89 × 3,125.38
  4. Step 4: Simplify right side
    5,221.30x = 22,518,019.11
  5. Step 5: Solve for x
    x = 22,518,019.11/5,221.30
  6. Step 6: Final answer
    x = 4,312.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.