Home / 2,439.60-3,653.88-1,398

Finding the Fourth Proportional to 2,439.60, 3,653.88 and 1,398

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Solution

The fourth proportional to 2,439.60, 3,653.88 and 1,398 is: 2,093.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.60 : 3,653.88 = 1,398 : x
  2. Step 2: Convert to fraction form
    2,439.60/3,653.88 = 1,398/x
  3. Step 3: Cross multiply
    2,439.60x = 3,653.88 × 1,398
  4. Step 4: Simplify right side
    2,439.60x = 5,108,124.24
  5. Step 5: Solve for x
    x = 5,108,124.24/2,439.60
  6. Step 6: Final answer
    x = 2,093.84

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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.