Home / 6,989.45-9,645.62-3,802.95

Finding the Fourth Proportional to 6,989.45, 9,645.62 and 3,802.95

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Solution

The fourth proportional to 6,989.45, 9,645.62 and 3,802.95 is: 5,248.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.45 : 9,645.62 = 3,802.95 : x
  2. Step 2: Convert to fraction form
    6,989.45/9,645.62 = 3,802.95/x
  3. Step 3: Cross multiply
    6,989.45x = 9,645.62 × 3,802.95
  4. Step 4: Simplify right side
    6,989.45x = 36,681,791.56
  5. Step 5: Solve for x
    x = 36,681,791.56/6,989.45
  6. Step 6: Final answer
    x = 5,248.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.