Home / 5,149.38-7,724.67-1,864.02

Finding the Fourth Proportional to 5,149.38, 7,724.67 and 1,864.02

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Solution

The fourth proportional to 5,149.38, 7,724.67 and 1,864.02 is: 2,796.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.38 : 7,724.67 = 1,864.02 : x
  2. Step 2: Convert to fraction form
    5,149.38/7,724.67 = 1,864.02/x
  3. Step 3: Cross multiply
    5,149.38x = 7,724.67 × 1,864.02
  4. Step 4: Simplify right side
    5,149.38x = 14,398,939.37
  5. Step 5: Solve for x
    x = 14,398,939.37/5,149.38
  6. Step 6: Final answer
    x = 2,796.25

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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.