Home / 6,720.72-9,273.24-3,925.68

Finding the Fourth Proportional to 6,720.72, 9,273.24 and 3,925.68

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Solution

The fourth proportional to 6,720.72, 9,273.24 and 3,925.68 is: 5,416.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.72 : 9,273.24 = 3,925.68 : x
  2. Step 2: Convert to fraction form
    6,720.72/9,273.24 = 3,925.68/x
  3. Step 3: Cross multiply
    6,720.72x = 9,273.24 × 3,925.68
  4. Step 4: Simplify right side
    6,720.72x = 36,403,772.80
  5. Step 5: Solve for x
    x = 36,403,772.80/6,720.72
  6. Step 6: Final answer
    x = 5,416.65

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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.