Home / 3,175.16-4,382.18-1,778

Finding the Fourth Proportional to 3,175.16, 4,382.18 and 1,778

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Solution

The fourth proportional to 3,175.16, 4,382.18 and 1,778 is: 2,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.16 : 4,382.18 = 1,778 : x
  2. Step 2: Convert to fraction form
    3,175.16/4,382.18 = 1,778/x
  3. Step 3: Cross multiply
    3,175.16x = 4,382.18 × 1,778
  4. Step 4: Simplify right side
    3,175.16x = 7,791,516.04
  5. Step 5: Solve for x
    x = 7,791,516.04/3,175.16
  6. Step 6: Final answer
    x = 2,453.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.