Home / 1,244.70-1,695.96-1,218.06

Finding the Fourth Proportional to 1,244.70, 1,695.96 and 1,218.06

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Solution

The fourth proportional to 1,244.70, 1,695.96 and 1,218.06 is: 1,659.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.70 : 1,695.96 = 1,218.06 : x
  2. Step 2: Convert to fraction form
    1,244.70/1,695.96 = 1,218.06/x
  3. Step 3: Cross multiply
    1,244.70x = 1,695.96 × 1,218.06
  4. Step 4: Simplify right side
    1,244.70x = 2,065,781.04
  5. Step 5: Solve for x
    x = 2,065,781.04/1,244.70
  6. Step 6: Final answer
    x = 1,659.66

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.