Home / 3,876.97-5,814.56-1,103.58

Finding the Fourth Proportional to 3,876.97, 5,814.56 and 1,103.58

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Solution

The fourth proportional to 3,876.97, 5,814.56 and 1,103.58 is: 1,655.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.97 : 5,814.56 = 1,103.58 : x
  2. Step 2: Convert to fraction form
    3,876.97/5,814.56 = 1,103.58/x
  3. Step 3: Cross multiply
    3,876.97x = 5,814.56 × 1,103.58
  4. Step 4: Simplify right side
    3,876.97x = 6,416,803.05
  5. Step 5: Solve for x
    x = 6,416,803.05/3,876.97
  6. Step 6: Final answer
    x = 1,655.11

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1.5x scale

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.