Home / 3,876.12-5,808.78-2,230.47

Finding the Fourth Proportional to 3,876.12, 5,808.78 and 2,230.47

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Solution

The fourth proportional to 3,876.12, 5,808.78 and 2,230.47 is: 3,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.12 : 5,808.78 = 2,230.47 : x
  2. Step 2: Convert to fraction form
    3,876.12/5,808.78 = 2,230.47/x
  3. Step 3: Cross multiply
    3,876.12x = 5,808.78 × 2,230.47
  4. Step 4: Simplify right side
    3,876.12x = 12,956,309.53
  5. Step 5: Solve for x
    x = 12,956,309.53/3,876.12
  6. Step 6: Final answer
    x = 3,342.60

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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.