Home / 3,815.11-5,267.06-2,911.76

Finding the Fourth Proportional to 3,815.11, 5,267.06 and 2,911.76

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Solution

The fourth proportional to 3,815.11, 5,267.06 and 2,911.76 is: 4,019.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.11 : 5,267.06 = 2,911.76 : x
  2. Step 2: Convert to fraction form
    3,815.11/5,267.06 = 2,911.76/x
  3. Step 3: Cross multiply
    3,815.11x = 5,267.06 × 2,911.76
  4. Step 4: Simplify right side
    3,815.11x = 15,336,404.40
  5. Step 5: Solve for x
    x = 15,336,404.40/3,815.11
  6. Step 6: Final answer
    x = 4,019.91

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1.5x scale

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.