Home / 1,818.06-2,508.71-1,021.22

Finding the Fourth Proportional to 1,818.06, 2,508.71 and 1,021.22

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Solution

The fourth proportional to 1,818.06, 2,508.71 and 1,021.22 is: 1,409.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.06 : 2,508.71 = 1,021.22 : x
  2. Step 2: Convert to fraction form
    1,818.06/2,508.71 = 1,021.22/x
  3. Step 3: Cross multiply
    1,818.06x = 2,508.71 × 1,021.22
  4. Step 4: Simplify right side
    1,818.06x = 2,561,944.42
  5. Step 5: Solve for x
    x = 2,561,944.42/1,818.06
  6. Step 6: Final answer
    x = 1,409.17

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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.