Home / 4,661.28-6,426.72-2,979.90

Finding the Fourth Proportional to 4,661.28, 6,426.72 and 2,979.90

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Solution

The fourth proportional to 4,661.28, 6,426.72 and 2,979.90 is: 4,108.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,661.28 : 6,426.72 = 2,979.90 : x
  2. Step 2: Convert to fraction form
    4,661.28/6,426.72 = 2,979.90/x
  3. Step 3: Cross multiply
    4,661.28x = 6,426.72 × 2,979.90
  4. Step 4: Simplify right side
    4,661.28x = 19,150,982.93
  5. Step 5: Solve for x
    x = 19,150,982.93/4,661.28
  6. Step 6: Final answer
    x = 4,108.52

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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.