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Finding the Fourth Proportional to 4,800.80, 7,204.14 and 1,879.13

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Solution

The fourth proportional to 4,800.80, 7,204.14 and 1,879.13 is: 2,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800.80 : 7,204.14 = 1,879.13 : x
  2. Step 2: Convert to fraction form
    4,800.80/7,204.14 = 1,879.13/x
  3. Step 3: Cross multiply
    4,800.80x = 7,204.14 × 1,879.13
  4. Step 4: Simplify right side
    4,800.80x = 13,537,533.61
  5. Step 5: Solve for x
    x = 13,537,533.61/4,800.80
  6. Step 6: Final answer
    x = 2,819.85

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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.