Home / 2,988.87-4,481.78-1,756.65

Finding the Fourth Proportional to 2,988.87, 4,481.78 and 1,756.65

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Solution

The fourth proportional to 2,988.87, 4,481.78 and 1,756.65 is: 2,634.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.87 : 4,481.78 = 1,756.65 : x
  2. Step 2: Convert to fraction form
    2,988.87/4,481.78 = 1,756.65/x
  3. Step 3: Cross multiply
    2,988.87x = 4,481.78 × 1,756.65
  4. Step 4: Simplify right side
    2,988.87x = 7,872,910.05
  5. Step 5: Solve for x
    x = 7,872,910.05/2,988.87
  6. Step 6: Final answer
    x = 2,634.08

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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.