Home / 1,818.81-2,508.44-1,118.97

Finding the Fourth Proportional to 1,818.81, 2,508.44 and 1,118.97

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Solution

The fourth proportional to 1,818.81, 2,508.44 and 1,118.97 is: 1,543.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.81 : 2,508.44 = 1,118.97 : x
  2. Step 2: Convert to fraction form
    1,818.81/2,508.44 = 1,118.97/x
  3. Step 3: Cross multiply
    1,818.81x = 2,508.44 × 1,118.97
  4. Step 4: Simplify right side
    1,818.81x = 2,806,863.51
  5. Step 5: Solve for x
    x = 2,806,863.51/1,818.81
  6. Step 6: Final answer
    x = 1,543.24

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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.