Home / 3,025.22-4,175.02-1,680.90

Finding the Fourth Proportional to 3,025.22, 4,175.02 and 1,680.90

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Solution

The fourth proportional to 3,025.22, 4,175.02 and 1,680.90 is: 2,319.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,025.22 : 4,175.02 = 1,680.90 : x
  2. Step 2: Convert to fraction form
    3,025.22/4,175.02 = 1,680.90/x
  3. Step 3: Cross multiply
    3,025.22x = 4,175.02 × 1,680.90
  4. Step 4: Simplify right side
    3,025.22x = 7,017,791.12
  5. Step 5: Solve for x
    x = 7,017,791.12/3,025.22
  6. Step 6: Final answer
    x = 2,319.76

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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.