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Finding the Fourth Proportional to 2,696.88, 4,042.84 and 1,395.68

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Solution

The fourth proportional to 2,696.88, 4,042.84 and 1,395.68 is: 2,092.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696.88 : 4,042.84 = 1,395.68 : x
  2. Step 2: Convert to fraction form
    2,696.88/4,042.84 = 1,395.68/x
  3. Step 3: Cross multiply
    2,696.88x = 4,042.84 × 1,395.68
  4. Step 4: Simplify right side
    2,696.88x = 5,642,510.93
  5. Step 5: Solve for x
    x = 5,642,510.93/2,696.88
  6. Step 6: Final answer
    x = 2,092.24

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1.5x scale

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.