Home / 2,766.86-3,818.16-1,507.89

Finding the Fourth Proportional to 2,766.86, 3,818.16 and 1,507.89

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Solution

The fourth proportional to 2,766.86, 3,818.16 and 1,507.89 is: 2,080.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.86 : 3,818.16 = 1,507.89 : x
  2. Step 2: Convert to fraction form
    2,766.86/3,818.16 = 1,507.89/x
  3. Step 3: Cross multiply
    2,766.86x = 3,818.16 × 1,507.89
  4. Step 4: Simplify right side
    2,766.86x = 5,757,353.75
  5. Step 5: Solve for x
    x = 5,757,353.75/2,766.86
  6. Step 6: Final answer
    x = 2,080.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.