Home / 6,887.72-10,331.76-2,208.18

Finding the Fourth Proportional to 6,887.72, 10,331.76 and 2,208.18

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Solution

The fourth proportional to 6,887.72, 10,331.76 and 2,208.18 is: 3,312.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.72 : 10,331.76 = 2,208.18 : x
  2. Step 2: Convert to fraction form
    6,887.72/10,331.76 = 2,208.18/x
  3. Step 3: Cross multiply
    6,887.72x = 10,331.76 × 2,208.18
  4. Step 4: Simplify right side
    6,887.72x = 22,814,385.80
  5. Step 5: Solve for x
    x = 22,814,385.80/6,887.72
  6. Step 6: Final answer
    x = 3,312.33

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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.