Home / 2,175.25-3,000.74-1,377.23

Finding the Fourth Proportional to 2,175.25, 3,000.74 and 1,377.23

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Solution

The fourth proportional to 2,175.25, 3,000.74 and 1,377.23 is: 1,899.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.25 : 3,000.74 = 1,377.23 : x
  2. Step 2: Convert to fraction form
    2,175.25/3,000.74 = 1,377.23/x
  3. Step 3: Cross multiply
    2,175.25x = 3,000.74 × 1,377.23
  4. Step 4: Simplify right side
    2,175.25x = 4,132,709.15
  5. Step 5: Solve for x
    x = 4,132,709.15/2,175.25
  6. Step 6: Final answer
    x = 1,899.88

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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.