Home / 5,985.80-8,979.32-2,291.14

Finding the Fourth Proportional to 5,985.80, 8,979.32 and 2,291.14

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Solution

The fourth proportional to 5,985.80, 8,979.32 and 2,291.14 is: 3,436.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,985.80 : 8,979.32 = 2,291.14 : x
  2. Step 2: Convert to fraction form
    5,985.80/8,979.32 = 2,291.14/x
  3. Step 3: Cross multiply
    5,985.80x = 8,979.32 × 2,291.14
  4. Step 4: Simplify right side
    5,985.80x = 20,572,879.22
  5. Step 5: Solve for x
    x = 20,572,879.22/5,985.80
  6. Step 6: Final answer
    x = 3,436.95

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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.