Home / 4,279.70-6,419.55-1,201.30

Finding the Fourth Proportional to 4,279.70, 6,419.55 and 1,201.30

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Solution

The fourth proportional to 4,279.70, 6,419.55 and 1,201.30 is: 1,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.70 : 6,419.55 = 1,201.30 : x
  2. Step 2: Convert to fraction form
    4,279.70/6,419.55 = 1,201.30/x
  3. Step 3: Cross multiply
    4,279.70x = 6,419.55 × 1,201.30
  4. Step 4: Simplify right side
    4,279.70x = 7,711,805.42
  5. Step 5: Solve for x
    x = 7,711,805.42/4,279.70
  6. Step 6: Final answer
    x = 1,801.95

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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.