Home / 7,040.28-9,714.83-3,895.86

Finding the Fourth Proportional to 7,040.28, 9,714.83 and 3,895.86

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Solution

The fourth proportional to 7,040.28, 9,714.83 and 3,895.86 is: 5,375.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.28 : 9,714.83 = 3,895.86 : x
  2. Step 2: Convert to fraction form
    7,040.28/9,714.83 = 3,895.86/x
  3. Step 3: Cross multiply
    7,040.28x = 9,714.83 × 3,895.86
  4. Step 4: Simplify right side
    7,040.28x = 37,847,598.12
  5. Step 5: Solve for x
    x = 37,847,598.12/7,040.28
  6. Step 6: Final answer
    x = 5,375.87

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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.