Home / 1,881.07-2,815.94-1,012.75

Finding the Fourth Proportional to 1,881.07, 2,815.94 and 1,012.75

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Solution

The fourth proportional to 1,881.07, 2,815.94 and 1,012.75 is: 1,516.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881.07 : 2,815.94 = 1,012.75 : x
  2. Step 2: Convert to fraction form
    1,881.07/2,815.94 = 1,012.75/x
  3. Step 3: Cross multiply
    1,881.07x = 2,815.94 × 1,012.75
  4. Step 4: Simplify right side
    1,881.07x = 2,851,838.17
  5. Step 5: Solve for x
    x = 2,851,838.17/1,881.07
  6. Step 6: Final answer
    x = 1,516.07

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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.