Home / 5,878.80-8,112.42-4,479.12

Finding the Fourth Proportional to 5,878.80, 8,112.42 and 4,479.12

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Solution

The fourth proportional to 5,878.80, 8,112.42 and 4,479.12 is: 6,180.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.80 : 8,112.42 = 4,479.12 : x
  2. Step 2: Convert to fraction form
    5,878.80/8,112.42 = 4,479.12/x
  3. Step 3: Cross multiply
    5,878.80x = 8,112.42 × 4,479.12
  4. Step 4: Simplify right side
    5,878.80x = 36,336,502.67
  5. Step 5: Solve for x
    x = 36,336,502.67/5,878.80
  6. Step 6: Final answer
    x = 6,180.94

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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.