Home / 7,438.46-11,158.61-3,487.68

Finding the Fourth Proportional to 7,438.46, 11,158.61 and 3,487.68

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Solution

The fourth proportional to 7,438.46, 11,158.61 and 3,487.68 is: 5,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.46 : 11,158.61 = 3,487.68 : x
  2. Step 2: Convert to fraction form
    7,438.46/11,158.61 = 3,487.68/x
  3. Step 3: Cross multiply
    7,438.46x = 11,158.61 × 3,487.68
  4. Step 4: Simplify right side
    7,438.46x = 38,917,643.49
  5. Step 5: Solve for x
    x = 38,917,643.49/7,438.46
  6. Step 6: Final answer
    x = 5,231.95

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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.