Home / 5,677.12-8,515.73-1,979.37

Finding the Fourth Proportional to 5,677.12, 8,515.73 and 1,979.37

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Solution

The fourth proportional to 5,677.12, 8,515.73 and 1,979.37 is: 2,969.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.12 : 8,515.73 = 1,979.37 : x
  2. Step 2: Convert to fraction form
    5,677.12/8,515.73 = 1,979.37/x
  3. Step 3: Cross multiply
    5,677.12x = 8,515.73 × 1,979.37
  4. Step 4: Simplify right side
    5,677.12x = 16,855,785.44
  5. Step 5: Solve for x
    x = 16,855,785.44/5,677.12
  6. Step 6: Final answer
    x = 2,969.07

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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.