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Finding the Fourth Proportional to 3,640.68, 5,022.68 and 2,068.47

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Solution

The fourth proportional to 3,640.68, 5,022.68 and 2,068.47 is: 2,853.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.68 : 5,022.68 = 2,068.47 : x
  2. Step 2: Convert to fraction form
    3,640.68/5,022.68 = 2,068.47/x
  3. Step 3: Cross multiply
    3,640.68x = 5,022.68 × 2,068.47
  4. Step 4: Simplify right side
    3,640.68x = 10,389,252.56
  5. Step 5: Solve for x
    x = 10,389,252.56/3,640.68
  6. Step 6: Final answer
    x = 2,853.66

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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.