Home / 2,262.25-3,122.45-1,331.29

Finding the Fourth Proportional to 2,262.25, 3,122.45 and 1,331.29

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Solution

The fourth proportional to 2,262.25, 3,122.45 and 1,331.29 is: 1,837.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.25 : 3,122.45 = 1,331.29 : x
  2. Step 2: Convert to fraction form
    2,262.25/3,122.45 = 1,331.29/x
  3. Step 3: Cross multiply
    2,262.25x = 3,122.45 × 1,331.29
  4. Step 4: Simplify right side
    2,262.25x = 4,156,886.46
  5. Step 5: Solve for x
    x = 4,156,886.46/2,262.25
  6. Step 6: Final answer
    x = 1,837.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.