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Finding the Fourth Proportional to 1,974.68, 2,961.14 and 1,050

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Solution

The fourth proportional to 1,974.68, 2,961.14 and 1,050 is: 1,574.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.68 : 2,961.14 = 1,050 : x
  2. Step 2: Convert to fraction form
    1,974.68/2,961.14 = 1,050/x
  3. Step 3: Cross multiply
    1,974.68x = 2,961.14 × 1,050
  4. Step 4: Simplify right side
    1,974.68x = 3,109,197
  5. Step 5: Solve for x
    x = 3,109,197/1,974.68
  6. Step 6: Final answer
    x = 1,574.53

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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.