Home / 1,862.07-2,791.86-983.66

Finding the Fourth Proportional to 1,862.07, 2,791.86 and 983.66

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Solution

The fourth proportional to 1,862.07, 2,791.86 and 983.66 is: 1,474.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.07 : 2,791.86 = 983.66 : x
  2. Step 2: Convert to fraction form
    1,862.07/2,791.86 = 983.66/x
  3. Step 3: Cross multiply
    1,862.07x = 2,791.86 × 983.66
  4. Step 4: Simplify right side
    1,862.07x = 2,746,227.05
  5. Step 5: Solve for x
    x = 2,746,227.05/1,862.07
  6. Step 6: Final answer
    x = 1,474.82

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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.