Home / 7,438.29-11,149.66-3,487.51

Finding the Fourth Proportional to 7,438.29, 11,149.66 and 3,487.51

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Solution

The fourth proportional to 7,438.29, 11,149.66 and 3,487.51 is: 5,227.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.29 : 11,149.66 = 3,487.51 : x
  2. Step 2: Convert to fraction form
    7,438.29/11,149.66 = 3,487.51/x
  3. Step 3: Cross multiply
    7,438.29x = 11,149.66 × 3,487.51
  4. Step 4: Simplify right side
    7,438.29x = 38,884,550.75
  5. Step 5: Solve for x
    x = 38,884,550.75/7,438.29
  6. Step 6: Final answer
    x = 5,227.62

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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.