Home / 7,721.19-11,583.81-3,337.61

Finding the Fourth Proportional to 7,721.19, 11,583.81 and 3,337.61

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Solution

The fourth proportional to 7,721.19, 11,583.81 and 3,337.61 is: 5,007.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.19 : 11,583.81 = 3,337.61 : x
  2. Step 2: Convert to fraction form
    7,721.19/11,583.81 = 3,337.61/x
  3. Step 3: Cross multiply
    7,721.19x = 11,583.81 × 3,337.61
  4. Step 4: Simplify right side
    7,721.19x = 38,662,182.18
  5. Step 5: Solve for x
    x = 38,662,182.18/7,721.19
  6. Step 6: Final answer
    x = 5,007.28

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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.