Home / 2,781.64-3,834.93-2,307.79

Finding the Fourth Proportional to 2,781.64, 3,834.93 and 2,307.79

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Solution

The fourth proportional to 2,781.64, 3,834.93 and 2,307.79 is: 3,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.64 : 3,834.93 = 2,307.79 : x
  2. Step 2: Convert to fraction form
    2,781.64/3,834.93 = 2,307.79/x
  3. Step 3: Cross multiply
    2,781.64x = 3,834.93 × 2,307.79
  4. Step 4: Simplify right side
    2,781.64x = 8,850,213.10
  5. Step 5: Solve for x
    x = 8,850,213.10/2,781.64
  6. Step 6: Final answer
    x = 3,181.65

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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.