Home / 6,981.80-9,635.37-3,837.99

Finding the Fourth Proportional to 6,981.80, 9,635.37 and 3,837.99

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Solution

The fourth proportional to 6,981.80, 9,635.37 and 3,837.99 is: 5,296.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.80 : 9,635.37 = 3,837.99 : x
  2. Step 2: Convert to fraction form
    6,981.80/9,635.37 = 3,837.99/x
  3. Step 3: Cross multiply
    6,981.80x = 9,635.37 × 3,837.99
  4. Step 4: Simplify right side
    6,981.80x = 36,980,453.71
  5. Step 5: Solve for x
    x = 36,980,453.71/6,981.80
  6. Step 6: Final answer
    x = 5,296.69

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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.