Home / 3,810.76-5,715.68-2,167.18

Finding the Fourth Proportional to 3,810.76, 5,715.68 and 2,167.18

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Solution

The fourth proportional to 3,810.76, 5,715.68 and 2,167.18 is: 3,250.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.76 : 5,715.68 = 2,167.18 : x
  2. Step 2: Convert to fraction form
    3,810.76/5,715.68 = 2,167.18/x
  3. Step 3: Cross multiply
    3,810.76x = 5,715.68 × 2,167.18
  4. Step 4: Simplify right side
    3,810.76x = 12,386,907.38
  5. Step 5: Solve for x
    x = 12,386,907.38/3,810.76
  6. Step 6: Final answer
    x = 3,250.51

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Double scale
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1.5x scale

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.