Home / 5,815.15-8,723.98-1,865.48

Finding the Fourth Proportional to 5,815.15, 8,723.98 and 1,865.48

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Solution

The fourth proportional to 5,815.15, 8,723.98 and 1,865.48 is: 2,798.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.15 : 8,723.98 = 1,865.48 : x
  2. Step 2: Convert to fraction form
    5,815.15/8,723.98 = 1,865.48/x
  3. Step 3: Cross multiply
    5,815.15x = 8,723.98 × 1,865.48
  4. Step 4: Simplify right side
    5,815.15x = 16,274,422.69
  5. Step 5: Solve for x
    x = 16,274,422.69/5,815.15
  6. Step 6: Final answer
    x = 2,798.63

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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.