Home / 2,225.76-3,331.62-1,248.90

Finding the Fourth Proportional to 2,225.76, 3,331.62 and 1,248.90

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Solution

The fourth proportional to 2,225.76, 3,331.62 and 1,248.90 is: 1,869.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.76 : 3,331.62 = 1,248.90 : x
  2. Step 2: Convert to fraction form
    2,225.76/3,331.62 = 1,248.90/x
  3. Step 3: Cross multiply
    2,225.76x = 3,331.62 × 1,248.90
  4. Step 4: Simplify right side
    2,225.76x = 4,160,860.22
  5. Step 5: Solve for x
    x = 4,160,860.22/2,225.76
  6. Step 6: Final answer
    x = 1,869.41

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1.5x scale

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.