Home / 2,862.30-4,286.11-1,983.55

Finding the Fourth Proportional to 2,862.30, 4,286.11 and 1,983.55

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Solution

The fourth proportional to 2,862.30, 4,286.11 and 1,983.55 is: 2,970.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.30 : 4,286.11 = 1,983.55 : x
  2. Step 2: Convert to fraction form
    2,862.30/4,286.11 = 1,983.55/x
  3. Step 3: Cross multiply
    2,862.30x = 4,286.11 × 1,983.55
  4. Step 4: Simplify right side
    2,862.30x = 8,501,703.57
  5. Step 5: Solve for x
    x = 8,501,703.57/2,862.30
  6. Step 6: Final answer
    x = 2,970.23

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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.