Home / 3,853.28-5,317.51-2,174.68

Finding the Fourth Proportional to 3,853.28, 5,317.51 and 2,174.68

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Solution

The fourth proportional to 3,853.28, 5,317.51 and 2,174.68 is: 3,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.28 : 5,317.51 = 2,174.68 : x
  2. Step 2: Convert to fraction form
    3,853.28/5,317.51 = 2,174.68/x
  3. Step 3: Cross multiply
    3,853.28x = 5,317.51 × 2,174.68
  4. Step 4: Simplify right side
    3,853.28x = 11,563,882.65
  5. Step 5: Solve for x
    x = 11,563,882.65/3,853.28
  6. Step 6: Final answer
    x = 3,001.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.