Home / 1,242.06-1,853.39-1,110.98

Finding the Fourth Proportional to 1,242.06, 1,853.39 and 1,110.98

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Solution

The fourth proportional to 1,242.06, 1,853.39 and 1,110.98 is: 1,657.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242.06 : 1,853.39 = 1,110.98 : x
  2. Step 2: Convert to fraction form
    1,242.06/1,853.39 = 1,110.98/x
  3. Step 3: Cross multiply
    1,242.06x = 1,853.39 × 1,110.98
  4. Step 4: Simplify right side
    1,242.06x = 2,059,064.40
  5. Step 5: Solve for x
    x = 2,059,064.40/1,242.06
  6. Step 6: Final answer
    x = 1,657.78

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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.