Home / 2,639.12-3,642.36-1,519.94

Finding the Fourth Proportional to 2,639.12, 3,642.36 and 1,519.94

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Solution

The fourth proportional to 2,639.12, 3,642.36 and 1,519.94 is: 2,097.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.12 : 3,642.36 = 1,519.94 : x
  2. Step 2: Convert to fraction form
    2,639.12/3,642.36 = 1,519.94/x
  3. Step 3: Cross multiply
    2,639.12x = 3,642.36 × 1,519.94
  4. Step 4: Simplify right side
    2,639.12x = 5,536,172.06
  5. Step 5: Solve for x
    x = 5,536,172.06/2,639.12
  6. Step 6: Final answer
    x = 2,097.74

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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.