Home / 2,387.18-3,578.91-1,137.13

Finding the Fourth Proportional to 2,387.18, 3,578.91 and 1,137.13

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Solution

The fourth proportional to 2,387.18, 3,578.91 and 1,137.13 is: 1,704.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.18 : 3,578.91 = 1,137.13 : x
  2. Step 2: Convert to fraction form
    2,387.18/3,578.91 = 1,137.13/x
  3. Step 3: Cross multiply
    2,387.18x = 3,578.91 × 1,137.13
  4. Step 4: Simplify right side
    2,387.18x = 4,069,685.93
  5. Step 5: Solve for x
    x = 4,069,685.93/2,387.18
  6. Step 6: Final answer
    x = 1,704.81

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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.