Home / 4,171.78-5,757.08-2,308.78

Finding the Fourth Proportional to 4,171.78, 5,757.08 and 2,308.78

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Solution

The fourth proportional to 4,171.78, 5,757.08 and 2,308.78 is: 3,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,171.78 : 5,757.08 = 2,308.78 : x
  2. Step 2: Convert to fraction form
    4,171.78/5,757.08 = 2,308.78/x
  3. Step 3: Cross multiply
    4,171.78x = 5,757.08 × 2,308.78
  4. Step 4: Simplify right side
    4,171.78x = 13,291,831.16
  5. Step 5: Solve for x
    x = 13,291,831.16/4,171.78
  6. Step 6: Final answer
    x = 3,186.13

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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.