Home / 2,979.56-4,470.10-1,748

Finding the Fourth Proportional to 2,979.56, 4,470.10 and 1,748

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Solution

The fourth proportional to 2,979.56, 4,470.10 and 1,748 is: 2,622.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.56 : 4,470.10 = 1,748 : x
  2. Step 2: Convert to fraction form
    2,979.56/4,470.10 = 1,748/x
  3. Step 3: Cross multiply
    2,979.56x = 4,470.10 × 1,748
  4. Step 4: Simplify right side
    2,979.56x = 7,813,734.80
  5. Step 5: Solve for x
    x = 7,813,734.80/2,979.56
  6. Step 6: Final answer
    x = 2,622.45

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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.