Home / 7,438.19-11,158.19-3,487.41

Finding the Fourth Proportional to 7,438.19, 11,158.19 and 3,487.41

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Solution

The fourth proportional to 7,438.19, 11,158.19 and 3,487.41 is: 5,231.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.19 : 11,158.19 = 3,487.41 : x
  2. Step 2: Convert to fraction form
    7,438.19/11,158.19 = 3,487.41/x
  3. Step 3: Cross multiply
    7,438.19x = 11,158.19 × 3,487.41
  4. Step 4: Simplify right side
    7,438.19x = 38,913,165.95
  5. Step 5: Solve for x
    x = 38,913,165.95/7,438.19
  6. Step 6: Final answer
    x = 5,231.54

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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.