Home / 4,738.71-7,108.08-2,788.65

Finding the Fourth Proportional to 4,738.71, 7,108.08 and 2,788.65

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Solution

The fourth proportional to 4,738.71, 7,108.08 and 2,788.65 is: 4,182.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,738.71 : 7,108.08 = 2,788.65 : x
  2. Step 2: Convert to fraction form
    4,738.71/7,108.08 = 2,788.65/x
  3. Step 3: Cross multiply
    4,738.71x = 7,108.08 × 2,788.65
  4. Step 4: Simplify right side
    4,738.71x = 19,821,947.29
  5. Step 5: Solve for x
    x = 19,821,947.29/4,738.71
  6. Step 6: Final answer
    x = 4,182.98

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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.