Home / 4,265.08-6,390.42-2,618.20

Finding the Fourth Proportional to 4,265.08, 6,390.42 and 2,618.20

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Solution

The fourth proportional to 4,265.08, 6,390.42 and 2,618.20 is: 3,922.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,265.08 : 6,390.42 = 2,618.20 : x
  2. Step 2: Convert to fraction form
    4,265.08/6,390.42 = 2,618.20/x
  3. Step 3: Cross multiply
    4,265.08x = 6,390.42 × 2,618.20
  4. Step 4: Simplify right side
    4,265.08x = 16,731,397.64
  5. Step 5: Solve for x
    x = 16,731,397.64/4,265.08
  6. Step 6: Final answer
    x = 3,922.88

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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.