Home / 4,721.20-7,082.19-1,434.32

Finding the Fourth Proportional to 4,721.20, 7,082.19 and 1,434.32

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Solution

The fourth proportional to 4,721.20, 7,082.19 and 1,434.32 is: 2,151.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.20 : 7,082.19 = 1,434.32 : x
  2. Step 2: Convert to fraction form
    4,721.20/7,082.19 = 1,434.32/x
  3. Step 3: Cross multiply
    4,721.20x = 7,082.19 × 1,434.32
  4. Step 4: Simplify right side
    4,721.20x = 10,158,091.35
  5. Step 5: Solve for x
    x = 10,158,091.35/4,721.20
  6. Step 6: Final answer
    x = 2,151.59

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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.