Home / 5,677.52-8,515.58-1,979.45

Finding the Fourth Proportional to 5,677.52, 8,515.58 and 1,979.45

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Solution

The fourth proportional to 5,677.52, 8,515.58 and 1,979.45 is: 2,968.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.52 : 8,515.58 = 1,979.45 : x
  2. Step 2: Convert to fraction form
    5,677.52/8,515.58 = 1,979.45/x
  3. Step 3: Cross multiply
    5,677.52x = 8,515.58 × 1,979.45
  4. Step 4: Simplify right side
    5,677.52x = 16,856,112.36
  5. Step 5: Solve for x
    x = 16,856,112.36/5,677.52
  6. Step 6: Final answer
    x = 2,968.92

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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.