Home / 5,677.19-8,515.83-1,979.41

Finding the Fourth Proportional to 5,677.19, 8,515.83 and 1,979.41

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Solution

The fourth proportional to 5,677.19, 8,515.83 and 1,979.41 is: 2,969.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.19 : 8,515.83 = 1,979.41 : x
  2. Step 2: Convert to fraction form
    5,677.19/8,515.83 = 1,979.41/x
  3. Step 3: Cross multiply
    5,677.19x = 8,515.83 × 1,979.41
  4. Step 4: Simplify right side
    5,677.19x = 16,856,297.77
  5. Step 5: Solve for x
    x = 16,856,297.77/5,677.19
  6. Step 6: Final answer
    x = 2,969.13

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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.