Home / 4,721.88-7,082.66-1,211.92

Finding the Fourth Proportional to 4,721.88, 7,082.66 and 1,211.92

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Solution

The fourth proportional to 4,721.88, 7,082.66 and 1,211.92 is: 1,817.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.88 : 7,082.66 = 1,211.92 : x
  2. Step 2: Convert to fraction form
    4,721.88/7,082.66 = 1,211.92/x
  3. Step 3: Cross multiply
    4,721.88x = 7,082.66 × 1,211.92
  4. Step 4: Simplify right side
    4,721.88x = 8,583,617.31
  5. Step 5: Solve for x
    x = 8,583,617.31/4,721.88
  6. Step 6: Final answer
    x = 1,817.84

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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.