Home / 5,327.56-7,987.88-2,206.72

Finding the Fourth Proportional to 5,327.56, 7,987.88 and 2,206.72

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Solution

The fourth proportional to 5,327.56, 7,987.88 and 2,206.72 is: 3,308.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,327.56 : 7,987.88 = 2,206.72 : x
  2. Step 2: Convert to fraction form
    5,327.56/7,987.88 = 2,206.72/x
  3. Step 3: Cross multiply
    5,327.56x = 7,987.88 × 2,206.72
  4. Step 4: Simplify right side
    5,327.56x = 17,627,014.55
  5. Step 5: Solve for x
    x = 17,627,014.55/5,327.56
  6. Step 6: Final answer
    x = 3,308.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.