Home / 1,331.56-2,001.33-1,101.93

Finding the Fourth Proportional to 1,331.56, 2,001.33 and 1,101.93

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Solution

The fourth proportional to 1,331.56, 2,001.33 and 1,101.93 is: 1,656.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.56 : 2,001.33 = 1,101.93 : x
  2. Step 2: Convert to fraction form
    1,331.56/2,001.33 = 1,101.93/x
  3. Step 3: Cross multiply
    1,331.56x = 2,001.33 × 1,101.93
  4. Step 4: Simplify right side
    1,331.56x = 2,205,326.79
  5. Step 5: Solve for x
    x = 2,205,326.79/1,331.56
  6. Step 6: Final answer
    x = 1,656.19

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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.