Home / 6,981.61-9,634.70-3,837.79

Finding the Fourth Proportional to 6,981.61, 9,634.70 and 3,837.79

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Solution

The fourth proportional to 6,981.61, 9,634.70 and 3,837.79 is: 5,296.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.61 : 9,634.70 = 3,837.79 : x
  2. Step 2: Convert to fraction form
    6,981.61/9,634.70 = 3,837.79/x
  3. Step 3: Cross multiply
    6,981.61x = 9,634.70 × 3,837.79
  4. Step 4: Simplify right side
    6,981.61x = 36,975,955.31
  5. Step 5: Solve for x
    x = 36,975,955.31/6,981.61
  6. Step 6: Final answer
    x = 5,296.19

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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.