Home / 3,400.38-4,693.70-2,143.55

Finding the Fourth Proportional to 3,400.38, 4,693.70 and 2,143.55

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Solution

The fourth proportional to 3,400.38, 4,693.70 and 2,143.55 is: 2,958.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.38 : 4,693.70 = 2,143.55 : x
  2. Step 2: Convert to fraction form
    3,400.38/4,693.70 = 2,143.55/x
  3. Step 3: Cross multiply
    3,400.38x = 4,693.70 × 2,143.55
  4. Step 4: Simplify right side
    3,400.38x = 10,061,181.65
  5. Step 5: Solve for x
    x = 10,061,181.65/3,400.38
  6. Step 6: Final answer
    x = 2,958.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.