Home / 5,151.38-7,727.67-1,866.02

Finding the Fourth Proportional to 5,151.38, 7,727.67 and 1,866.02

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Solution

The fourth proportional to 5,151.38, 7,727.67 and 1,866.02 is: 2,799.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.38 : 7,727.67 = 1,866.02 : x
  2. Step 2: Convert to fraction form
    5,151.38/7,727.67 = 1,866.02/x
  3. Step 3: Cross multiply
    5,151.38x = 7,727.67 × 1,866.02
  4. Step 4: Simplify right side
    5,151.38x = 14,419,986.77
  5. Step 5: Solve for x
    x = 14,419,986.77/5,151.38
  6. Step 6: Final answer
    x = 2,799.25

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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.