Home / 1,610.17-2,221.39-945.97

Finding the Fourth Proportional to 1,610.17, 2,221.39 and 945.97

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Solution

The fourth proportional to 1,610.17, 2,221.39 and 945.97 is: 1,305.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.17 : 2,221.39 = 945.97 : x
  2. Step 2: Convert to fraction form
    1,610.17/2,221.39 = 945.97/x
  3. Step 3: Cross multiply
    1,610.17x = 2,221.39 × 945.97
  4. Step 4: Simplify right side
    1,610.17x = 2,101,363.93
  5. Step 5: Solve for x
    x = 2,101,363.93/1,610.17
  6. Step 6: Final answer
    x = 1,305.06

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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.