Home / 5,438.85-7,505.55-3,081.08

Finding the Fourth Proportional to 5,438.85, 7,505.55 and 3,081.08

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Solution

The fourth proportional to 5,438.85, 7,505.55 and 3,081.08 is: 4,251.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.85 : 7,505.55 = 3,081.08 : x
  2. Step 2: Convert to fraction form
    5,438.85/7,505.55 = 3,081.08/x
  3. Step 3: Cross multiply
    5,438.85x = 7,505.55 × 3,081.08
  4. Step 4: Simplify right side
    5,438.85x = 23,125,162.47
  5. Step 5: Solve for x
    x = 23,125,162.47/5,438.85
  6. Step 6: Final answer
    x = 4,251.85

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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.