Home / 2,607.24-3,910.71-1,218.65

Finding the Fourth Proportional to 2,607.24, 3,910.71 and 1,218.65

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Solution

The fourth proportional to 2,607.24, 3,910.71 and 1,218.65 is: 1,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607.24 : 3,910.71 = 1,218.65 : x
  2. Step 2: Convert to fraction form
    2,607.24/3,910.71 = 1,218.65/x
  3. Step 3: Cross multiply
    2,607.24x = 3,910.71 × 1,218.65
  4. Step 4: Simplify right side
    2,607.24x = 4,765,761.48
  5. Step 5: Solve for x
    x = 4,765,761.48/2,607.24
  6. Step 6: Final answer
    x = 1,827.90

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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.