Home / 3,175.85-4,382.57-1,740.21

Finding the Fourth Proportional to 3,175.85, 4,382.57 and 1,740.21

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Solution

The fourth proportional to 3,175.85, 4,382.57 and 1,740.21 is: 2,401.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.85 : 4,382.57 = 1,740.21 : x
  2. Step 2: Convert to fraction form
    3,175.85/4,382.57 = 1,740.21/x
  3. Step 3: Cross multiply
    3,175.85x = 4,382.57 × 1,740.21
  4. Step 4: Simplify right side
    3,175.85x = 7,626,595.70
  5. Step 5: Solve for x
    x = 7,626,595.70/3,175.85
  6. Step 6: Final answer
    x = 2,401.43

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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.