Home / 3,122.52-4,304.61-1,926.71

Finding the Fourth Proportional to 3,122.52, 4,304.61 and 1,926.71

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Solution

The fourth proportional to 3,122.52, 4,304.61 and 1,926.71 is: 2,656.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.52 : 4,304.61 = 1,926.71 : x
  2. Step 2: Convert to fraction form
    3,122.52/4,304.61 = 1,926.71/x
  3. Step 3: Cross multiply
    3,122.52x = 4,304.61 × 1,926.71
  4. Step 4: Simplify right side
    3,122.52x = 8,293,735.13
  5. Step 5: Solve for x
    x = 8,293,735.13/3,122.52
  6. Step 6: Final answer
    x = 2,656.10

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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.