Home / 5,272.66-7,279.30-3,285.87

Finding the Fourth Proportional to 5,272.66, 7,279.30 and 3,285.87

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Solution

The fourth proportional to 5,272.66, 7,279.30 and 3,285.87 is: 4,536.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.66 : 7,279.30 = 3,285.87 : x
  2. Step 2: Convert to fraction form
    5,272.66/7,279.30 = 3,285.87/x
  3. Step 3: Cross multiply
    5,272.66x = 7,279.30 × 3,285.87
  4. Step 4: Simplify right side
    5,272.66x = 23,918,833.49
  5. Step 5: Solve for x
    x = 23,918,833.49/5,272.66
  6. Step 6: Final answer
    x = 4,536.39

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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.