Home / 6,899.80-10,350.60-2,218.66

Finding the Fourth Proportional to 6,899.80, 10,350.60 and 2,218.66

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Solution

The fourth proportional to 6,899.80, 10,350.60 and 2,218.66 is: 3,328.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.80 : 10,350.60 = 2,218.66 : x
  2. Step 2: Convert to fraction form
    6,899.80/10,350.60 = 2,218.66/x
  3. Step 3: Cross multiply
    6,899.80x = 10,350.60 × 2,218.66
  4. Step 4: Simplify right side
    6,899.80x = 22,964,462.20
  5. Step 5: Solve for x
    x = 22,964,462.20/6,899.80
  6. Step 6: Final answer
    x = 3,328.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.