Home / 1,249.15-1,872.37-616.36

Finding the Fourth Proportional to 1,249.15, 1,872.37 and 616.36

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Solution

The fourth proportional to 1,249.15, 1,872.37 and 616.36 is: 923.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249.15 : 1,872.37 = 616.36 : x
  2. Step 2: Convert to fraction form
    1,249.15/1,872.37 = 616.36/x
  3. Step 3: Cross multiply
    1,249.15x = 1,872.37 × 616.36
  4. Step 4: Simplify right side
    1,249.15x = 1,154,050.11
  5. Step 5: Solve for x
    x = 1,154,050.11/1,249.15
  6. Step 6: Final answer
    x = 923.87

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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.