Home / 6,720.22-9,272.55-3,925.18

Finding the Fourth Proportional to 6,720.22, 9,272.55 and 3,925.18

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Solution

The fourth proportional to 6,720.22, 9,272.55 and 3,925.18 is: 5,415.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.22 : 9,272.55 = 3,925.18 : x
  2. Step 2: Convert to fraction form
    6,720.22/9,272.55 = 3,925.18/x
  3. Step 3: Cross multiply
    6,720.22x = 9,272.55 × 3,925.18
  4. Step 4: Simplify right side
    6,720.22x = 36,396,427.81
  5. Step 5: Solve for x
    x = 36,396,427.81/6,720.22
  6. Step 6: Final answer
    x = 5,415.96

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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.