Home / 2,882.49-3,977.87-1,687.22

Finding the Fourth Proportional to 2,882.49, 3,977.87 and 1,687.22

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Solution

The fourth proportional to 2,882.49, 3,977.87 and 1,687.22 is: 2,328.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,882.49 : 3,977.87 = 1,687.22 : x
  2. Step 2: Convert to fraction form
    2,882.49/3,977.87 = 1,687.22/x
  3. Step 3: Cross multiply
    2,882.49x = 3,977.87 × 1,687.22
  4. Step 4: Simplify right side
    2,882.49x = 6,711,534.68
  5. Step 5: Solve for x
    x = 6,711,534.68/2,882.49
  6. Step 6: Final answer
    x = 2,328.38

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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.