Home / 6,688.20-9,229.56-3,703.92

Finding the Fourth Proportional to 6,688.20, 9,229.56 and 3,703.92

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Solution

The fourth proportional to 6,688.20, 9,229.56 and 3,703.92 is: 5,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688.20 : 9,229.56 = 3,703.92 : x
  2. Step 2: Convert to fraction form
    6,688.20/9,229.56 = 3,703.92/x
  3. Step 3: Cross multiply
    6,688.20x = 9,229.56 × 3,703.92
  4. Step 4: Simplify right side
    6,688.20x = 34,185,551.88
  5. Step 5: Solve for x
    x = 34,185,551.88/6,688.20
  6. Step 6: Final answer
    x = 5,111.32

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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.