Home / 1,968.88-2,718.57-1,306.66

Finding the Fourth Proportional to 1,968.88, 2,718.57 and 1,306.66

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Solution

The fourth proportional to 1,968.88, 2,718.57 and 1,306.66 is: 1,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.88 : 2,718.57 = 1,306.66 : x
  2. Step 2: Convert to fraction form
    1,968.88/2,718.57 = 1,306.66/x
  3. Step 3: Cross multiply
    1,968.88x = 2,718.57 × 1,306.66
  4. Step 4: Simplify right side
    1,968.88x = 3,552,246.68
  5. Step 5: Solve for x
    x = 3,552,246.68/1,968.88
  6. Step 6: Final answer
    x = 1,804.20

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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.