Home / 5,514.56-7,601.28-3,838.40

Finding the Fourth Proportional to 5,514.56, 7,601.28 and 3,838.40

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Solution

The fourth proportional to 5,514.56, 7,601.28 and 3,838.40 is: 5,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,514.56 : 7,601.28 = 3,838.40 : x
  2. Step 2: Convert to fraction form
    5,514.56/7,601.28 = 3,838.40/x
  3. Step 3: Cross multiply
    5,514.56x = 7,601.28 × 3,838.40
  4. Step 4: Simplify right side
    5,514.56x = 29,176,753.15
  5. Step 5: Solve for x
    x = 29,176,753.15/5,514.56
  6. Step 6: Final answer
    x = 5,290.86

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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.