Home / 4,988.25-7,478.28-2,068.65

Finding the Fourth Proportional to 4,988.25, 7,478.28 and 2,068.65

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Solution

The fourth proportional to 4,988.25, 7,478.28 and 2,068.65 is: 3,101.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.25 : 7,478.28 = 2,068.65 : x
  2. Step 2: Convert to fraction form
    4,988.25/7,478.28 = 2,068.65/x
  3. Step 3: Cross multiply
    4,988.25x = 7,478.28 × 2,068.65
  4. Step 4: Simplify right side
    4,988.25x = 15,469,943.92
  5. Step 5: Solve for x
    x = 15,469,943.92/4,988.25
  6. Step 6: Final answer
    x = 3,101.28

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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.