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Finding the Fourth Proportional to 2,685.52, 3,706.23 and 1,623.43

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Solution

The fourth proportional to 2,685.52, 3,706.23 and 1,623.43 is: 2,240.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.52 : 3,706.23 = 1,623.43 : x
  2. Step 2: Convert to fraction form
    2,685.52/3,706.23 = 1,623.43/x
  3. Step 3: Cross multiply
    2,685.52x = 3,706.23 × 1,623.43
  4. Step 4: Simplify right side
    2,685.52x = 6,016,804.97
  5. Step 5: Solve for x
    x = 6,016,804.97/2,685.52
  6. Step 6: Final answer
    x = 2,240.46

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1.5x scale

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.