Home / 1,818.34-2,721.36-1,125.46

Finding the Fourth Proportional to 1,818.34, 2,721.36 and 1,125.46

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Solution

The fourth proportional to 1,818.34, 2,721.36 and 1,125.46 is: 1,684.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.34 : 2,721.36 = 1,125.46 : x
  2. Step 2: Convert to fraction form
    1,818.34/2,721.36 = 1,125.46/x
  3. Step 3: Cross multiply
    1,818.34x = 2,721.36 × 1,125.46
  4. Step 4: Simplify right side
    1,818.34x = 3,062,781.83
  5. Step 5: Solve for x
    x = 3,062,781.83/1,818.34
  6. Step 6: Final answer
    x = 1,684.38

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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.