Home / 1,218.15-1,823.13-1,013.13

Finding the Fourth Proportional to 1,218.15, 1,823.13 and 1,013.13

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Solution

The fourth proportional to 1,218.15, 1,823.13 and 1,013.13 is: 1,516.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218.15 : 1,823.13 = 1,013.13 : x
  2. Step 2: Convert to fraction form
    1,218.15/1,823.13 = 1,013.13/x
  3. Step 3: Cross multiply
    1,218.15x = 1,823.13 × 1,013.13
  4. Step 4: Simplify right side
    1,218.15x = 1,847,067.70
  5. Step 5: Solve for x
    x = 1,847,067.70/1,218.15
  6. Step 6: Final answer
    x = 1,516.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.