Home / 6,520.80-8,998.78-3,536.66

Finding the Fourth Proportional to 6,520.80, 8,998.78 and 3,536.66

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Solution

The fourth proportional to 6,520.80, 8,998.78 and 3,536.66 is: 4,880.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.80 : 8,998.78 = 3,536.66 : x
  2. Step 2: Convert to fraction form
    6,520.80/8,998.78 = 3,536.66/x
  3. Step 3: Cross multiply
    6,520.80x = 8,998.78 × 3,536.66
  4. Step 4: Simplify right side
    6,520.80x = 31,825,625.27
  5. Step 5: Solve for x
    x = 31,825,625.27/6,520.80
  6. Step 6: Final answer
    x = 4,880.63

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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.