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Finding the Fourth Proportional to 1,493.87, 2,061.44 and 934.31

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Solution

The fourth proportional to 1,493.87, 2,061.44 and 934.31 is: 1,289.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.87 : 2,061.44 = 934.31 : x
  2. Step 2: Convert to fraction form
    1,493.87/2,061.44 = 934.31/x
  3. Step 3: Cross multiply
    1,493.87x = 2,061.44 × 934.31
  4. Step 4: Simplify right side
    1,493.87x = 1,926,033.25
  5. Step 5: Solve for x
    x = 1,926,033.25/1,493.87
  6. Step 6: Final answer
    x = 1,289.29

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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.