Home / 5,272.56-7,909.72-2,154.24

Finding the Fourth Proportional to 5,272.56, 7,909.72 and 2,154.24

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Solution

The fourth proportional to 5,272.56, 7,909.72 and 2,154.24 is: 3,231.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.56 : 7,909.72 = 2,154.24 : x
  2. Step 2: Convert to fraction form
    5,272.56/7,909.72 = 2,154.24/x
  3. Step 3: Cross multiply
    5,272.56x = 7,909.72 × 2,154.24
  4. Step 4: Simplify right side
    5,272.56x = 17,039,435.21
  5. Step 5: Solve for x
    x = 17,039,435.21/5,272.56
  6. Step 6: Final answer
    x = 3,231.72

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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.