Home / 7,081.85-10,622.22-2,151.51

Finding the Fourth Proportional to 7,081.85, 10,622.22 and 2,151.51

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Solution

The fourth proportional to 7,081.85, 10,622.22 and 2,151.51 is: 3,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.85 : 10,622.22 = 2,151.51 : x
  2. Step 2: Convert to fraction form
    7,081.85/10,622.22 = 2,151.51/x
  3. Step 3: Cross multiply
    7,081.85x = 10,622.22 × 2,151.51
  4. Step 4: Simplify right side
    7,081.85x = 22,853,812.55
  5. Step 5: Solve for x
    x = 22,853,812.55/7,081.85
  6. Step 6: Final answer
    x = 3,227.10

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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.