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Finding the Fourth Proportional to 1,927.73, 2,892.14 and 774.29

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Solution

The fourth proportional to 1,927.73, 2,892.14 and 774.29 is: 1,161.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.73 : 2,892.14 = 774.29 : x
  2. Step 2: Convert to fraction form
    1,927.73/2,892.14 = 774.29/x
  3. Step 3: Cross multiply
    1,927.73x = 2,892.14 × 774.29
  4. Step 4: Simplify right side
    1,927.73x = 2,239,355.08
  5. Step 5: Solve for x
    x = 2,239,355.08/1,927.73
  6. Step 6: Final answer
    x = 1,161.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.