Home / 4,188.80-5,780.32-2,862.83

Finding the Fourth Proportional to 4,188.80, 5,780.32 and 2,862.83

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Solution

The fourth proportional to 4,188.80, 5,780.32 and 2,862.83 is: 3,950.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.80 : 5,780.32 = 2,862.83 : x
  2. Step 2: Convert to fraction form
    4,188.80/5,780.32 = 2,862.83/x
  3. Step 3: Cross multiply
    4,188.80x = 5,780.32 × 2,862.83
  4. Step 4: Simplify right side
    4,188.80x = 16,548,080.80
  5. Step 5: Solve for x
    x = 16,548,080.80/4,188.80
  6. Step 6: Final answer
    x = 3,950.55

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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.