Home / 3,175.30-4,382.01-1,778.02

Finding the Fourth Proportional to 3,175.30, 4,382.01 and 1,778.02

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Solution

The fourth proportional to 3,175.30, 4,382.01 and 1,778.02 is: 2,453.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.30 : 4,382.01 = 1,778.02 : x
  2. Step 2: Convert to fraction form
    3,175.30/4,382.01 = 1,778.02/x
  3. Step 3: Cross multiply
    3,175.30x = 4,382.01 × 1,778.02
  4. Step 4: Simplify right side
    3,175.30x = 7,791,301.42
  5. Step 5: Solve for x
    x = 7,791,301.42/3,175.30
  6. Step 6: Final answer
    x = 2,453.72

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1.5x scale

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.