Home / 2,862.99-3,949.61-1,867.91

Finding the Fourth Proportional to 2,862.99, 3,949.61 and 1,867.91

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Solution

The fourth proportional to 2,862.99, 3,949.61 and 1,867.91 is: 2,576.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.99 : 3,949.61 = 1,867.91 : x
  2. Step 2: Convert to fraction form
    2,862.99/3,949.61 = 1,867.91/x
  3. Step 3: Cross multiply
    2,862.99x = 3,949.61 × 1,867.91
  4. Step 4: Simplify right side
    2,862.99x = 7,377,486.93
  5. Step 5: Solve for x
    x = 7,377,486.93/2,862.99
  6. Step 6: Final answer
    x = 2,576.85

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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.