Home / 7,151.84-10,729.28-2,221.36

Finding the Fourth Proportional to 7,151.84, 10,729.28 and 2,221.36

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Solution

The fourth proportional to 7,151.84, 10,729.28 and 2,221.36 is: 3,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.84 : 10,729.28 = 2,221.36 : x
  2. Step 2: Convert to fraction form
    7,151.84/10,729.28 = 2,221.36/x
  3. Step 3: Cross multiply
    7,151.84x = 10,729.28 × 2,221.36
  4. Step 4: Simplify right side
    7,151.84x = 23,833,593.42
  5. Step 5: Solve for x
    x = 23,833,593.42/7,151.84
  6. Step 6: Final answer
    x = 3,332.51

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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.