Home / 3,151.71-4,350.51-2,561.22

Finding the Fourth Proportional to 3,151.71, 4,350.51 and 2,561.22

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Solution

The fourth proportional to 3,151.71, 4,350.51 and 2,561.22 is: 3,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.71 : 4,350.51 = 2,561.22 : x
  2. Step 2: Convert to fraction form
    3,151.71/4,350.51 = 2,561.22/x
  3. Step 3: Cross multiply
    3,151.71x = 4,350.51 × 2,561.22
  4. Step 4: Simplify right side
    3,151.71x = 11,142,613.22
  5. Step 5: Solve for x
    x = 11,142,613.22/3,151.71
  6. Step 6: Final answer
    x = 3,535.42

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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.