Home / 3,891.23-5,837.67-1,117.88

Finding the Fourth Proportional to 3,891.23, 5,837.67 and 1,117.88

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Solution

The fourth proportional to 3,891.23, 5,837.67 and 1,117.88 is: 1,677.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.23 : 5,837.67 = 1,117.88 : x
  2. Step 2: Convert to fraction form
    3,891.23/5,837.67 = 1,117.88/x
  3. Step 3: Cross multiply
    3,891.23x = 5,837.67 × 1,117.88
  4. Step 4: Simplify right side
    3,891.23x = 6,525,785.35
  5. Step 5: Solve for x
    x = 6,525,785.35/3,891.23
  6. Step 6: Final answer
    x = 1,677.05

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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.