Home / 1,112.22-1,660.35-1,073.79

Finding the Fourth Proportional to 1,112.22, 1,660.35 and 1,073.79

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Solution

The fourth proportional to 1,112.22, 1,660.35 and 1,073.79 is: 1,602.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.22 : 1,660.35 = 1,073.79 : x
  2. Step 2: Convert to fraction form
    1,112.22/1,660.35 = 1,073.79/x
  3. Step 3: Cross multiply
    1,112.22x = 1,660.35 × 1,073.79
  4. Step 4: Simplify right side
    1,112.22x = 1,782,867.23
  5. Step 5: Solve for x
    x = 1,782,867.23/1,112.22
  6. Step 6: Final answer
    x = 1,602.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.