Home / 4,901.20-7,351-1,391.44

Finding the Fourth Proportional to 4,901.20, 7,351 and 1,391.44

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Solution

The fourth proportional to 4,901.20, 7,351 and 1,391.44 is: 2,086.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901.20 : 7,351 = 1,391.44 : x
  2. Step 2: Convert to fraction form
    4,901.20/7,351 = 1,391.44/x
  3. Step 3: Cross multiply
    4,901.20x = 7,351 × 1,391.44
  4. Step 4: Simplify right side
    4,901.20x = 10,228,475.44
  5. Step 5: Solve for x
    x = 10,228,475.44/4,901.20
  6. Step 6: Final answer
    x = 2,086.93

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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.