Home / 1,213.38-1,672.85-1,014.32

Finding the Fourth Proportional to 1,213.38, 1,672.85 and 1,014.32

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Solution

The fourth proportional to 1,213.38, 1,672.85 and 1,014.32 is: 1,398.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213.38 : 1,672.85 = 1,014.32 : x
  2. Step 2: Convert to fraction form
    1,213.38/1,672.85 = 1,014.32/x
  3. Step 3: Cross multiply
    1,213.38x = 1,672.85 × 1,014.32
  4. Step 4: Simplify right side
    1,213.38x = 1,696,811.93
  5. Step 5: Solve for x
    x = 1,696,811.93/1,213.38
  6. Step 6: Final answer
    x = 1,398.42

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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.