Home / 4,751.13-7,126.89-1,288.38

Finding the Fourth Proportional to 4,751.13, 7,126.89 and 1,288.38

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Solution

The fourth proportional to 4,751.13, 7,126.89 and 1,288.38 is: 1,932.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.13 : 7,126.89 = 1,288.38 : x
  2. Step 2: Convert to fraction form
    4,751.13/7,126.89 = 1,288.38/x
  3. Step 3: Cross multiply
    4,751.13x = 7,126.89 × 1,288.38
  4. Step 4: Simplify right side
    4,751.13x = 9,182,142.54
  5. Step 5: Solve for x
    x = 9,182,142.54/4,751.13
  6. Step 6: Final answer
    x = 1,932.62

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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.