Home / 5,438.30-8,159.40-3,355.88

Finding the Fourth Proportional to 5,438.30, 8,159.40 and 3,355.88

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Solution

The fourth proportional to 5,438.30, 8,159.40 and 3,355.88 is: 5,035.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.30 : 8,159.40 = 3,355.88 : x
  2. Step 2: Convert to fraction form
    5,438.30/8,159.40 = 3,355.88/x
  3. Step 3: Cross multiply
    5,438.30x = 8,159.40 × 3,355.88
  4. Step 4: Simplify right side
    5,438.30x = 27,381,967.27
  5. Step 5: Solve for x
    x = 27,381,967.27/5,438.30
  6. Step 6: Final answer
    x = 5,035.02

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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.