Home / 8,281.34-12,422.40-2,735.18

Finding the Fourth Proportional to 8,281.34, 12,422.40 and 2,735.18

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Solution

The fourth proportional to 8,281.34, 12,422.40 and 2,735.18 is: 4,102.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.34 : 12,422.40 = 2,735.18 : x
  2. Step 2: Convert to fraction form
    8,281.34/12,422.40 = 2,735.18/x
  3. Step 3: Cross multiply
    8,281.34x = 12,422.40 × 2,735.18
  4. Step 4: Simplify right side
    8,281.34x = 33,977,500.03
  5. Step 5: Solve for x
    x = 33,977,500.03/8,281.34
  6. Step 6: Final answer
    x = 4,102.90

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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.