Home / 2,154.60-3,221.91-1,634.72

Finding the Fourth Proportional to 2,154.60, 3,221.91 and 1,634.72

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Solution

The fourth proportional to 2,154.60, 3,221.91 and 1,634.72 is: 2,444.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.60 : 3,221.91 = 1,634.72 : x
  2. Step 2: Convert to fraction form
    2,154.60/3,221.91 = 1,634.72/x
  3. Step 3: Cross multiply
    2,154.60x = 3,221.91 × 1,634.72
  4. Step 4: Simplify right side
    2,154.60x = 5,266,904.61
  5. Step 5: Solve for x
    x = 5,266,904.61/2,154.60
  6. Step 6: Final answer
    x = 2,444.49

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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.