Home / 5,711.02-8,567.90-1,815.43

Finding the Fourth Proportional to 5,711.02, 8,567.90 and 1,815.43

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Solution

The fourth proportional to 5,711.02, 8,567.90 and 1,815.43 is: 2,723.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.02 : 8,567.90 = 1,815.43 : x
  2. Step 2: Convert to fraction form
    5,711.02/8,567.90 = 1,815.43/x
  3. Step 3: Cross multiply
    5,711.02x = 8,567.90 × 1,815.43
  4. Step 4: Simplify right side
    5,711.02x = 15,554,422.70
  5. Step 5: Solve for x
    x = 15,554,422.70/5,711.02
  6. Step 6: Final answer
    x = 2,723.58

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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.