Home / 9,182.78-13,767.39-2,939.18

Finding the Fourth Proportional to 9,182.78, 13,767.39 and 2,939.18

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Solution

The fourth proportional to 9,182.78, 13,767.39 and 2,939.18 is: 4,406.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,182.78 : 13,767.39 = 2,939.18 : x
  2. Step 2: Convert to fraction form
    9,182.78/13,767.39 = 2,939.18/x
  3. Step 3: Cross multiply
    9,182.78x = 13,767.39 × 2,939.18
  4. Step 4: Simplify right side
    9,182.78x = 40,464,844.53
  5. Step 5: Solve for x
    x = 40,464,844.53/9,182.78
  6. Step 6: Final answer
    x = 4,406.60

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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.