Home / 5,279.22-7,285.23-3,288.78

Finding the Fourth Proportional to 5,279.22, 7,285.23 and 3,288.78

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Solution

The fourth proportional to 5,279.22, 7,285.23 and 3,288.78 is: 4,538.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.22 : 7,285.23 = 3,288.78 : x
  2. Step 2: Convert to fraction form
    5,279.22/7,285.23 = 3,288.78/x
  3. Step 3: Cross multiply
    5,279.22x = 7,285.23 × 3,288.78
  4. Step 4: Simplify right side
    5,279.22x = 23,959,518.72
  5. Step 5: Solve for x
    x = 23,959,518.72/5,279.22
  6. Step 6: Final answer
    x = 4,538.46

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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.