Home / 1,516.20-2,092.40-886.63

Finding the Fourth Proportional to 1,516.20, 2,092.40 and 886.63

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Solution

The fourth proportional to 1,516.20, 2,092.40 and 886.63 is: 1,223.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.20 : 2,092.40 = 886.63 : x
  2. Step 2: Convert to fraction form
    1,516.20/2,092.40 = 886.63/x
  3. Step 3: Cross multiply
    1,516.20x = 2,092.40 × 886.63
  4. Step 4: Simplify right side
    1,516.20x = 1,855,174.95
  5. Step 5: Solve for x
    x = 1,855,174.95/1,516.20
  6. Step 6: Final answer
    x = 1,223.57

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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.