Home / 6,981.50-9,634.47-3,837.89

Finding the Fourth Proportional to 6,981.50, 9,634.47 and 3,837.89

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Solution

The fourth proportional to 6,981.50, 9,634.47 and 3,837.89 is: 5,296.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.50 : 9,634.47 = 3,837.89 : x
  2. Step 2: Convert to fraction form
    6,981.50/9,634.47 = 3,837.89/x
  3. Step 3: Cross multiply
    6,981.50x = 9,634.47 × 3,837.89
  4. Step 4: Simplify right side
    6,981.50x = 36,976,036.07
  5. Step 5: Solve for x
    x = 36,976,036.07/6,981.50
  6. Step 6: Final answer
    x = 5,296.29

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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.