Home / 2,882.52-3,977.62-1,687.65

Finding the Fourth Proportional to 2,882.52, 3,977.62 and 1,687.65

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Solution

The fourth proportional to 2,882.52, 3,977.62 and 1,687.65 is: 2,328.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,882.52 : 3,977.62 = 1,687.65 : x
  2. Step 2: Convert to fraction form
    2,882.52/3,977.62 = 1,687.65/x
  3. Step 3: Cross multiply
    2,882.52x = 3,977.62 × 1,687.65
  4. Step 4: Simplify right side
    2,882.52x = 6,712,830.39
  5. Step 5: Solve for x
    x = 6,712,830.39/2,882.52
  6. Step 6: Final answer
    x = 2,328.81

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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.