Home / 6,291.39-9,436.61-1,908.87

Finding the Fourth Proportional to 6,291.39, 9,436.61 and 1,908.87

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Solution

The fourth proportional to 6,291.39, 9,436.61 and 1,908.87 is: 2,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.39 : 9,436.61 = 1,908.87 : x
  2. Step 2: Convert to fraction form
    6,291.39/9,436.61 = 1,908.87/x
  3. Step 3: Cross multiply
    6,291.39x = 9,436.61 × 1,908.87
  4. Step 4: Simplify right side
    6,291.39x = 18,013,252.19
  5. Step 5: Solve for x
    x = 18,013,252.19/6,291.39
  6. Step 6: Final answer
    x = 2,863.16

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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.