Home / 1,610.16-2,221.50-1,112.88

Finding the Fourth Proportional to 1,610.16, 2,221.50 and 1,112.88

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Solution

The fourth proportional to 1,610.16, 2,221.50 and 1,112.88 is: 1,535.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.16 : 2,221.50 = 1,112.88 : x
  2. Step 2: Convert to fraction form
    1,610.16/2,221.50 = 1,112.88/x
  3. Step 3: Cross multiply
    1,610.16x = 2,221.50 × 1,112.88
  4. Step 4: Simplify right side
    1,610.16x = 2,472,262.92
  5. Step 5: Solve for x
    x = 2,472,262.92/1,610.16
  6. Step 6: Final answer
    x = 1,535.41

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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.