Home / 3,959.78-5,464.34-2,281.25

Finding the Fourth Proportional to 3,959.78, 5,464.34 and 2,281.25

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Solution

The fourth proportional to 3,959.78, 5,464.34 and 2,281.25 is: 3,148.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.78 : 5,464.34 = 2,281.25 : x
  2. Step 2: Convert to fraction form
    3,959.78/5,464.34 = 2,281.25/x
  3. Step 3: Cross multiply
    3,959.78x = 5,464.34 × 2,281.25
  4. Step 4: Simplify right side
    3,959.78x = 12,465,549.27
  5. Step 5: Solve for x
    x = 12,465,549.27/3,959.78
  6. Step 6: Final answer
    x = 3,148.04

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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.