Home / 3,182.27-4,390.65-1,855.80

Finding the Fourth Proportional to 3,182.27, 4,390.65 and 1,855.80

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Solution

The fourth proportional to 3,182.27, 4,390.65 and 1,855.80 is: 2,560.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.27 : 4,390.65 = 1,855.80 : x
  2. Step 2: Convert to fraction form
    3,182.27/4,390.65 = 1,855.80/x
  3. Step 3: Cross multiply
    3,182.27x = 4,390.65 × 1,855.80
  4. Step 4: Simplify right side
    3,182.27x = 8,148,168.27
  5. Step 5: Solve for x
    x = 8,148,168.27/3,182.27
  6. Step 6: Final answer
    x = 2,560.49

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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.