Home / 2,635.11-3,635.28-1,515.78

Finding the Fourth Proportional to 2,635.11, 3,635.28 and 1,515.78

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Solution

The fourth proportional to 2,635.11, 3,635.28 and 1,515.78 is: 2,091.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.11 : 3,635.28 = 1,515.78 : x
  2. Step 2: Convert to fraction form
    2,635.11/3,635.28 = 1,515.78/x
  3. Step 3: Cross multiply
    2,635.11x = 3,635.28 × 1,515.78
  4. Step 4: Simplify right side
    2,635.11x = 5,510,284.72
  5. Step 5: Solve for x
    x = 5,510,284.72/2,635.11
  6. Step 6: Final answer
    x = 2,091.10

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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.