Home / 8,281.31-12,421.89-3,349.62

Finding the Fourth Proportional to 8,281.31, 12,421.89 and 3,349.62

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Solution

The fourth proportional to 8,281.31, 12,421.89 and 3,349.62 is: 5,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.31 : 12,421.89 = 3,349.62 : x
  2. Step 2: Convert to fraction form
    8,281.31/12,421.89 = 3,349.62/x
  3. Step 3: Cross multiply
    8,281.31x = 12,421.89 × 3,349.62
  4. Step 4: Simplify right side
    8,281.31x = 41,608,611.18
  5. Step 5: Solve for x
    x = 41,608,611.18/8,281.31
  6. Step 6: Final answer
    x = 5,024.40

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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.