Home / 7,438.17-11,147.45-3,488.81

Finding the Fourth Proportional to 7,438.17, 11,147.45 and 3,488.81

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Solution

The fourth proportional to 7,438.17, 11,147.45 and 3,488.81 is: 5,228.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.17 : 11,147.45 = 3,488.81 : x
  2. Step 2: Convert to fraction form
    7,438.17/11,147.45 = 3,488.81/x
  3. Step 3: Cross multiply
    7,438.17x = 11,147.45 × 3,488.81
  4. Step 4: Simplify right side
    7,438.17x = 38,891,335.03
  5. Step 5: Solve for x
    x = 38,891,335.03/7,438.17
  6. Step 6: Final answer
    x = 5,228.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.