Home / 1,418.23-2,127.74-1,009.97

Finding the Fourth Proportional to 1,418.23, 2,127.74 and 1,009.97

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Solution

The fourth proportional to 1,418.23, 2,127.74 and 1,009.97 is: 1,515.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.23 : 2,127.74 = 1,009.97 : x
  2. Step 2: Convert to fraction form
    1,418.23/2,127.74 = 1,009.97/x
  3. Step 3: Cross multiply
    1,418.23x = 2,127.74 × 1,009.97
  4. Step 4: Simplify right side
    1,418.23x = 2,148,953.57
  5. Step 5: Solve for x
    x = 2,148,953.57/1,418.23
  6. Step 6: Final answer
    x = 1,515.24

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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.