Home / 7,816.74-11,721.33-2,888.70

Finding the Fourth Proportional to 7,816.74, 11,721.33 and 2,888.70

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Solution

The fourth proportional to 7,816.74, 11,721.33 and 2,888.70 is: 4,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.74 : 11,721.33 = 2,888.70 : x
  2. Step 2: Convert to fraction form
    7,816.74/11,721.33 = 2,888.70/x
  3. Step 3: Cross multiply
    7,816.74x = 11,721.33 × 2,888.70
  4. Step 4: Simplify right side
    7,816.74x = 33,859,405.97
  5. Step 5: Solve for x
    x = 33,859,405.97/7,816.74
  6. Step 6: Final answer
    x = 4,331.65

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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.