Home / 3,453.02-5,182.60-2,279.78

Finding the Fourth Proportional to 3,453.02, 5,182.60 and 2,279.78

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Solution

The fourth proportional to 3,453.02, 5,182.60 and 2,279.78 is: 3,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.02 : 5,182.60 = 2,279.78 : x
  2. Step 2: Convert to fraction form
    3,453.02/5,182.60 = 2,279.78/x
  3. Step 3: Cross multiply
    3,453.02x = 5,182.60 × 2,279.78
  4. Step 4: Simplify right side
    3,453.02x = 11,815,187.83
  5. Step 5: Solve for x
    x = 11,815,187.83/3,453.02
  6. Step 6: Final answer
    x = 3,421.70

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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.