Home / 6,720.47-9,272.89-3,925.43

Finding the Fourth Proportional to 6,720.47, 9,272.89 and 3,925.43

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Solution

The fourth proportional to 6,720.47, 9,272.89 and 3,925.43 is: 5,416.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.47 : 9,272.89 = 3,925.43 : x
  2. Step 2: Convert to fraction form
    6,720.47/9,272.89 = 3,925.43/x
  3. Step 3: Cross multiply
    6,720.47x = 9,272.89 × 3,925.43
  4. Step 4: Simplify right side
    6,720.47x = 36,400,080.59
  5. Step 5: Solve for x
    x = 36,400,080.59/6,720.47
  6. Step 6: Final answer
    x = 5,416.30

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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.