Home / 5,281.20-7,918.89-3,617.23

Finding the Fourth Proportional to 5,281.20, 7,918.89 and 3,617.23

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Solution

The fourth proportional to 5,281.20, 7,918.89 and 3,617.23 is: 5,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.20 : 7,918.89 = 3,617.23 : x
  2. Step 2: Convert to fraction form
    5,281.20/7,918.89 = 3,617.23/x
  3. Step 3: Cross multiply
    5,281.20x = 7,918.89 × 3,617.23
  4. Step 4: Simplify right side
    5,281.20x = 28,644,460.41
  5. Step 5: Solve for x
    x = 28,644,460.41/5,281.20
  6. Step 6: Final answer
    x = 5,423.85

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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.