Home / 2,426.88-3,349.32-1,378.86

Finding the Fourth Proportional to 2,426.88, 3,349.32 and 1,378.86

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Solution

The fourth proportional to 2,426.88, 3,349.32 and 1,378.86 is: 1,902.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,426.88 : 3,349.32 = 1,378.86 : x
  2. Step 2: Convert to fraction form
    2,426.88/3,349.32 = 1,378.86/x
  3. Step 3: Cross multiply
    2,426.88x = 3,349.32 × 1,378.86
  4. Step 4: Simplify right side
    2,426.88x = 4,618,243.38
  5. Step 5: Solve for x
    x = 4,618,243.38/2,426.88
  6. Step 6: Final answer
    x = 1,902.95

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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.