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Finding the Fourth Proportional to 2,685.91, 3,708.17 and 1,756.03

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Solution

The fourth proportional to 2,685.91, 3,708.17 and 1,756.03 is: 2,424.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.91 : 3,708.17 = 1,756.03 : x
  2. Step 2: Convert to fraction form
    2,685.91/3,708.17 = 1,756.03/x
  3. Step 3: Cross multiply
    2,685.91x = 3,708.17 × 1,756.03
  4. Step 4: Simplify right side
    2,685.91x = 6,511,657.77
  5. Step 5: Solve for x
    x = 6,511,657.77/2,685.91
  6. Step 6: Final answer
    x = 2,424.38

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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.