Home / 5,540.32-7,639.42-4,528.89

Finding the Fourth Proportional to 5,540.32, 7,639.42 and 4,528.89

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Solution

The fourth proportional to 5,540.32, 7,639.42 and 4,528.89 is: 6,244.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.32 : 7,639.42 = 4,528.89 : x
  2. Step 2: Convert to fraction form
    5,540.32/7,639.42 = 4,528.89/x
  3. Step 3: Cross multiply
    5,540.32x = 7,639.42 × 4,528.89
  4. Step 4: Simplify right side
    5,540.32x = 34,598,092.84
  5. Step 5: Solve for x
    x = 34,598,092.84/5,540.32
  6. Step 6: Final answer
    x = 6,244.78

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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.