Home / 1,818.86-2,725.79-1,039.23

Finding the Fourth Proportional to 1,818.86, 2,725.79 and 1,039.23

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Solution

The fourth proportional to 1,818.86, 2,725.79 and 1,039.23 is: 1,557.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.86 : 2,725.79 = 1,039.23 : x
  2. Step 2: Convert to fraction form
    1,818.86/2,725.79 = 1,039.23/x
  3. Step 3: Cross multiply
    1,818.86x = 2,725.79 × 1,039.23
  4. Step 4: Simplify right side
    1,818.86x = 2,832,717.55
  5. Step 5: Solve for x
    x = 2,832,717.55/1,818.86
  6. Step 6: Final answer
    x = 1,557.42

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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.