Home / 6,497.45-8,963.29-3,978.75

Finding the Fourth Proportional to 6,497.45, 8,963.29 and 3,978.75

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Solution

The fourth proportional to 6,497.45, 8,963.29 and 3,978.75 is: 5,488.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,497.45 : 8,963.29 = 3,978.75 : x
  2. Step 2: Convert to fraction form
    6,497.45/8,963.29 = 3,978.75/x
  3. Step 3: Cross multiply
    6,497.45x = 8,963.29 × 3,978.75
  4. Step 4: Simplify right side
    6,497.45x = 35,662,728.67
  5. Step 5: Solve for x
    x = 35,662,728.67/6,497.45
  6. Step 6: Final answer
    x = 5,488.73

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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.