Home / 7,721.39-11,583.69-3,104.39

Finding the Fourth Proportional to 7,721.39, 11,583.69 and 3,104.39

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Solution

The fourth proportional to 7,721.39, 11,583.69 and 3,104.39 is: 4,657.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.39 : 11,583.69 = 3,104.39 : x
  2. Step 2: Convert to fraction form
    7,721.39/11,583.69 = 3,104.39/x
  3. Step 3: Cross multiply
    7,721.39x = 11,583.69 × 3,104.39
  4. Step 4: Simplify right side
    7,721.39x = 35,960,291.40
  5. Step 5: Solve for x
    x = 35,960,291.40/7,721.39
  6. Step 6: Final answer
    x = 4,657.23

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1.5x scale

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.