Home / 3,800.10-5,705.55-2,979.30

Finding the Fourth Proportional to 3,800.10, 5,705.55 and 2,979.30

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Solution

The fourth proportional to 3,800.10, 5,705.55 and 2,979.30 is: 4,473.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.10 : 5,705.55 = 2,979.30 : x
  2. Step 2: Convert to fraction form
    3,800.10/5,705.55 = 2,979.30/x
  3. Step 3: Cross multiply
    3,800.10x = 5,705.55 × 2,979.30
  4. Step 4: Simplify right side
    3,800.10x = 16,998,545.12
  5. Step 5: Solve for x
    x = 16,998,545.12/3,800.10
  6. Step 6: Final answer
    x = 4,473.18

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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.