Home / 1,211.28-1,825.76-1,101.93

Finding the Fourth Proportional to 1,211.28, 1,825.76 and 1,101.93

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Solution

The fourth proportional to 1,211.28, 1,825.76 and 1,101.93 is: 1,660.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.28 : 1,825.76 = 1,101.93 : x
  2. Step 2: Convert to fraction form
    1,211.28/1,825.76 = 1,101.93/x
  3. Step 3: Cross multiply
    1,211.28x = 1,825.76 × 1,101.93
  4. Step 4: Simplify right side
    1,211.28x = 2,011,854.21
  5. Step 5: Solve for x
    x = 2,011,854.21/1,211.28
  6. Step 6: Final answer
    x = 1,660.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.