Home / 2,082.32-3,122.64-927.28

Finding the Fourth Proportional to 2,082.32, 3,122.64 and 927.28

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Solution

The fourth proportional to 2,082.32, 3,122.64 and 927.28 is: 1,390.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.32 : 3,122.64 = 927.28 : x
  2. Step 2: Convert to fraction form
    2,082.32/3,122.64 = 927.28/x
  3. Step 3: Cross multiply
    2,082.32x = 3,122.64 × 927.28
  4. Step 4: Simplify right side
    2,082.32x = 2,895,561.62
  5. Step 5: Solve for x
    x = 2,895,561.62/2,082.32
  6. Step 6: Final answer
    x = 1,390.55

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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.