Home / 3,115.17-4,668.72-1,264.14

Finding the Fourth Proportional to 3,115.17, 4,668.72 and 1,264.14

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Solution

The fourth proportional to 3,115.17, 4,668.72 and 1,264.14 is: 1,894.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.17 : 4,668.72 = 1,264.14 : x
  2. Step 2: Convert to fraction form
    3,115.17/4,668.72 = 1,264.14/x
  3. Step 3: Cross multiply
    3,115.17x = 4,668.72 × 1,264.14
  4. Step 4: Simplify right side
    3,115.17x = 5,901,915.70
  5. Step 5: Solve for x
    x = 5,901,915.70/3,115.17
  6. Step 6: Final answer
    x = 1,894.57

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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.