Home / 2,979.43-4,469.40-1,130.55

Finding the Fourth Proportional to 2,979.43, 4,469.40 and 1,130.55

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Solution

The fourth proportional to 2,979.43, 4,469.40 and 1,130.55 is: 1,695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.43 : 4,469.40 = 1,130.55 : x
  2. Step 2: Convert to fraction form
    2,979.43/4,469.40 = 1,130.55/x
  3. Step 3: Cross multiply
    2,979.43x = 4,469.40 × 1,130.55
  4. Step 4: Simplify right side
    2,979.43x = 5,052,863.41
  5. Step 5: Solve for x
    x = 5,052,863.41/2,979.43
  6. Step 6: Final answer
    x = 1,695.92

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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.