Home / 6,479.43-8,938.80-3,961.65

Finding the Fourth Proportional to 6,479.43, 8,938.80 and 3,961.65

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Solution

The fourth proportional to 6,479.43, 8,938.80 and 3,961.65 is: 5,465.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.43 : 8,938.80 = 3,961.65 : x
  2. Step 2: Convert to fraction form
    6,479.43/8,938.80 = 3,961.65/x
  3. Step 3: Cross multiply
    6,479.43x = 8,938.80 × 3,961.65
  4. Step 4: Simplify right side
    6,479.43x = 35,412,411.88
  5. Step 5: Solve for x
    x = 35,412,411.88/6,479.43
  6. Step 6: Final answer
    x = 5,465.36

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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.