Home / 2,057.35-2,839.20-1,125.85

Finding the Fourth Proportional to 2,057.35, 2,839.20 and 1,125.85

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Solution

The fourth proportional to 2,057.35, 2,839.20 and 1,125.85 is: 1,553.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.35 : 2,839.20 = 1,125.85 : x
  2. Step 2: Convert to fraction form
    2,057.35/2,839.20 = 1,125.85/x
  3. Step 3: Cross multiply
    2,057.35x = 2,839.20 × 1,125.85
  4. Step 4: Simplify right side
    2,057.35x = 3,196,513.32
  5. Step 5: Solve for x
    x = 3,196,513.32/2,057.35
  6. Step 6: Final answer
    x = 1,553.70

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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.