Home / 2,721.28-4,082.56-1,182.72

Finding the Fourth Proportional to 2,721.28, 4,082.56 and 1,182.72

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Solution

The fourth proportional to 2,721.28, 4,082.56 and 1,182.72 is: 1,774.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.28 : 4,082.56 = 1,182.72 : x
  2. Step 2: Convert to fraction form
    2,721.28/4,082.56 = 1,182.72/x
  3. Step 3: Cross multiply
    2,721.28x = 4,082.56 × 1,182.72
  4. Step 4: Simplify right side
    2,721.28x = 4,828,525.36
  5. Step 5: Solve for x
    x = 4,828,525.36/2,721.28
  6. Step 6: Final answer
    x = 1,774.36

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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.