Home / 2,891.39-4,343.18-2,165.45

Finding the Fourth Proportional to 2,891.39, 4,343.18 and 2,165.45

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Solution

The fourth proportional to 2,891.39, 4,343.18 and 2,165.45 is: 3,252.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.39 : 4,343.18 = 2,165.45 : x
  2. Step 2: Convert to fraction form
    2,891.39/4,343.18 = 2,165.45/x
  3. Step 3: Cross multiply
    2,891.39x = 4,343.18 × 2,165.45
  4. Step 4: Simplify right side
    2,891.39x = 9,404,906.59
  5. Step 5: Solve for x
    x = 9,404,906.59/2,891.39
  6. Step 6: Final answer
    x = 3,252.73

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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.