Home / 2,747.18-3,791.48-1,684.76

Finding the Fourth Proportional to 2,747.18, 3,791.48 and 1,684.76

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Solution

The fourth proportional to 2,747.18, 3,791.48 and 1,684.76 is: 2,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.18 : 3,791.48 = 1,684.76 : x
  2. Step 2: Convert to fraction form
    2,747.18/3,791.48 = 1,684.76/x
  3. Step 3: Cross multiply
    2,747.18x = 3,791.48 × 1,684.76
  4. Step 4: Simplify right side
    2,747.18x = 6,387,719.10
  5. Step 5: Solve for x
    x = 6,387,719.10/2,747.18
  6. Step 6: Final answer
    x = 2,325.20

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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.