Home / 3,927.05-5,420.60-2,514.55

Finding the Fourth Proportional to 3,927.05, 5,420.60 and 2,514.55

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Solution

The fourth proportional to 3,927.05, 5,420.60 and 2,514.55 is: 3,470.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.05 : 5,420.60 = 2,514.55 : x
  2. Step 2: Convert to fraction form
    3,927.05/5,420.60 = 2,514.55/x
  3. Step 3: Cross multiply
    3,927.05x = 5,420.60 × 2,514.55
  4. Step 4: Simplify right side
    3,927.05x = 13,630,330.05
  5. Step 5: Solve for x
    x = 13,630,330.05/3,927.05
  6. Step 6: Final answer
    x = 3,470.88

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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.