Home / 7,479.75-11,219.68-3,572.31

Finding the Fourth Proportional to 7,479.75, 11,219.68 and 3,572.31

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Solution

The fourth proportional to 7,479.75, 11,219.68 and 3,572.31 is: 5,358.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.75 : 11,219.68 = 3,572.31 : x
  2. Step 2: Convert to fraction form
    7,479.75/11,219.68 = 3,572.31/x
  3. Step 3: Cross multiply
    7,479.75x = 11,219.68 × 3,572.31
  4. Step 4: Simplify right side
    7,479.75x = 40,080,221.60
  5. Step 5: Solve for x
    x = 40,080,221.60/7,479.75
  6. Step 6: Final answer
    x = 5,358.49

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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.