Home / 5,530.05-7,631.56-3,139.96

Finding the Fourth Proportional to 5,530.05, 7,631.56 and 3,139.96

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Solution

The fourth proportional to 5,530.05, 7,631.56 and 3,139.96 is: 4,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.05 : 7,631.56 = 3,139.96 : x
  2. Step 2: Convert to fraction form
    5,530.05/7,631.56 = 3,139.96/x
  3. Step 3: Cross multiply
    5,530.05x = 7,631.56 × 3,139.96
  4. Step 4: Simplify right side
    5,530.05x = 23,962,793.14
  5. Step 5: Solve for x
    x = 23,962,793.14/5,530.05
  6. Step 6: Final answer
    x = 4,333.20

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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.