Home / 3,280.92-4,536.40-2,865.88

Finding the Fourth Proportional to 3,280.92, 4,536.40 and 2,865.88

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Solution

The fourth proportional to 3,280.92, 4,536.40 and 2,865.88 is: 3,962.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.92 : 4,536.40 = 2,865.88 : x
  2. Step 2: Convert to fraction form
    3,280.92/4,536.40 = 2,865.88/x
  3. Step 3: Cross multiply
    3,280.92x = 4,536.40 × 2,865.88
  4. Step 4: Simplify right side
    3,280.92x = 13,000,778.03
  5. Step 5: Solve for x
    x = 13,000,778.03/3,280.92
  6. Step 6: Final answer
    x = 3,962.54

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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.