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Finding the Fourth Proportional to 3,576.14, 4,934.14 and 2,158.71

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Solution

The fourth proportional to 3,576.14, 4,934.14 and 2,158.71 is: 2,978.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.14 : 4,934.14 = 2,158.71 : x
  2. Step 2: Convert to fraction form
    3,576.14/4,934.14 = 2,158.71/x
  3. Step 3: Cross multiply
    3,576.14x = 4,934.14 × 2,158.71
  4. Step 4: Simplify right side
    3,576.14x = 10,651,377.36
  5. Step 5: Solve for x
    x = 10,651,377.36/3,576.14
  6. Step 6: Final answer
    x = 2,978.46

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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.