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Finding the Fourth Proportional to 1,974.73, 2,957.64 and 1,151.77

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Solution

The fourth proportional to 1,974.73, 2,957.64 and 1,151.77 is: 1,725.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.73 : 2,957.64 = 1,151.77 : x
  2. Step 2: Convert to fraction form
    1,974.73/2,957.64 = 1,151.77/x
  3. Step 3: Cross multiply
    1,974.73x = 2,957.64 × 1,151.77
  4. Step 4: Simplify right side
    1,974.73x = 3,406,521.02
  5. Step 5: Solve for x
    x = 3,406,521.02/1,974.73
  6. Step 6: Final answer
    x = 1,725.06

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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.