Home / 5,279.85-7,287.54-3,289.34

Finding the Fourth Proportional to 5,279.85, 7,287.54 and 3,289.34

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Solution

The fourth proportional to 5,279.85, 7,287.54 and 3,289.34 is: 4,540.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.85 : 7,287.54 = 3,289.34 : x
  2. Step 2: Convert to fraction form
    5,279.85/7,287.54 = 3,289.34/x
  3. Step 3: Cross multiply
    5,279.85x = 7,287.54 × 3,289.34
  4. Step 4: Simplify right side
    5,279.85x = 23,971,202.71
  5. Step 5: Solve for x
    x = 23,971,202.71/5,279.85
  6. Step 6: Final answer
    x = 4,540.13

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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.