Home / 6,512.80-8,988.55-3,994.46

Finding the Fourth Proportional to 6,512.80, 8,988.55 and 3,994.46

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Solution

The fourth proportional to 6,512.80, 8,988.55 and 3,994.46 is: 5,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,512.80 : 8,988.55 = 3,994.46 : x
  2. Step 2: Convert to fraction form
    6,512.80/8,988.55 = 3,994.46/x
  3. Step 3: Cross multiply
    6,512.80x = 8,988.55 × 3,994.46
  4. Step 4: Simplify right side
    6,512.80x = 35,904,403.43
  5. Step 5: Solve for x
    x = 35,904,403.43/6,512.80
  6. Step 6: Final answer
    x = 5,512.90

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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.