Home / 5,711.50-8,567.40-1,815.91

Finding the Fourth Proportional to 5,711.50, 8,567.40 and 1,815.91

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Solution

The fourth proportional to 5,711.50, 8,567.40 and 1,815.91 is: 2,723.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.50 : 8,567.40 = 1,815.91 : x
  2. Step 2: Convert to fraction form
    5,711.50/8,567.40 = 1,815.91/x
  3. Step 3: Cross multiply
    5,711.50x = 8,567.40 × 1,815.91
  4. Step 4: Simplify right side
    5,711.50x = 15,557,627.33
  5. Step 5: Solve for x
    x = 15,557,627.33/5,711.50
  6. Step 6: Final answer
    x = 2,723.91

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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.