Home / 5,564.48-7,678.23-3,174.78

Finding the Fourth Proportional to 5,564.48, 7,678.23 and 3,174.78

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Solution

The fourth proportional to 5,564.48, 7,678.23 and 3,174.78 is: 4,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,564.48 : 7,678.23 = 3,174.78 : x
  2. Step 2: Convert to fraction form
    5,564.48/7,678.23 = 3,174.78/x
  3. Step 3: Cross multiply
    5,564.48x = 7,678.23 × 3,174.78
  4. Step 4: Simplify right side
    5,564.48x = 24,376,691.04
  5. Step 5: Solve for x
    x = 24,376,691.04/5,564.48
  6. Step 6: Final answer
    x = 4,380.77

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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.