Home / 1,214.60-1,677.29-1,169.46

Finding the Fourth Proportional to 1,214.60, 1,677.29 and 1,169.46

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Solution

The fourth proportional to 1,214.60, 1,677.29 and 1,169.46 is: 1,614.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214.60 : 1,677.29 = 1,169.46 : x
  2. Step 2: Convert to fraction form
    1,214.60/1,677.29 = 1,169.46/x
  3. Step 3: Cross multiply
    1,214.60x = 1,677.29 × 1,169.46
  4. Step 4: Simplify right side
    1,214.60x = 1,961,517.72
  5. Step 5: Solve for x
    x = 1,961,517.72/1,214.60
  6. Step 6: Final answer
    x = 1,614.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.