Home / 6,669.20-9,201.96-4,015.76

Finding the Fourth Proportional to 6,669.20, 9,201.96 and 4,015.76

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Solution

The fourth proportional to 6,669.20, 9,201.96 and 4,015.76 is: 5,540.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,669.20 : 9,201.96 = 4,015.76 : x
  2. Step 2: Convert to fraction form
    6,669.20/9,201.96 = 4,015.76/x
  3. Step 3: Cross multiply
    6,669.20x = 9,201.96 × 4,015.76
  4. Step 4: Simplify right side
    6,669.20x = 36,952,862.89
  5. Step 5: Solve for x
    x = 36,952,862.89/6,669.20
  6. Step 6: Final answer
    x = 5,540.82

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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.