Home / 2,750.87-4,128.33-1,581.44

Finding the Fourth Proportional to 2,750.87, 4,128.33 and 1,581.44

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Solution

The fourth proportional to 2,750.87, 4,128.33 and 1,581.44 is: 2,373.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.87 : 4,128.33 = 1,581.44 : x
  2. Step 2: Convert to fraction form
    2,750.87/4,128.33 = 1,581.44/x
  3. Step 3: Cross multiply
    2,750.87x = 4,128.33 × 1,581.44
  4. Step 4: Simplify right side
    2,750.87x = 6,528,691.48
  5. Step 5: Solve for x
    x = 6,528,691.48/2,750.87
  6. Step 6: Final answer
    x = 2,373.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.