Home / 3,618.47-5,421.90-2,227.70

Finding the Fourth Proportional to 3,618.47, 5,421.90 and 2,227.70

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Solution

The fourth proportional to 3,618.47, 5,421.90 and 2,227.70 is: 3,337.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.47 : 5,421.90 = 2,227.70 : x
  2. Step 2: Convert to fraction form
    3,618.47/5,421.90 = 2,227.70/x
  3. Step 3: Cross multiply
    3,618.47x = 5,421.90 × 2,227.70
  4. Step 4: Simplify right side
    3,618.47x = 12,078,366.63
  5. Step 5: Solve for x
    x = 12,078,366.63/3,618.47
  6. Step 6: Final answer
    x = 3,337.98

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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.