Home / 3,818.34-5,717.79-2,515.86

Finding the Fourth Proportional to 3,818.34, 5,717.79 and 2,515.86

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Solution

The fourth proportional to 3,818.34, 5,717.79 and 2,515.86 is: 3,767.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.34 : 5,717.79 = 2,515.86 : x
  2. Step 2: Convert to fraction form
    3,818.34/5,717.79 = 2,515.86/x
  3. Step 3: Cross multiply
    3,818.34x = 5,717.79 × 2,515.86
  4. Step 4: Simplify right side
    3,818.34x = 14,385,159.15
  5. Step 5: Solve for x
    x = 14,385,159.15/3,818.34
  6. Step 6: Final answer
    x = 3,767.39

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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.