Home / 5,381.01-7,424.33-3,390.57

Finding the Fourth Proportional to 5,381.01, 7,424.33 and 3,390.57

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Solution

The fourth proportional to 5,381.01, 7,424.33 and 3,390.57 is: 4,678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.01 : 7,424.33 = 3,390.57 : x
  2. Step 2: Convert to fraction form
    5,381.01/7,424.33 = 3,390.57/x
  3. Step 3: Cross multiply
    5,381.01x = 7,424.33 × 3,390.57
  4. Step 4: Simplify right side
    5,381.01x = 25,172,693.62
  5. Step 5: Solve for x
    x = 25,172,693.62/5,381.01
  6. Step 6: Final answer
    x = 4,678.06

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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.