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Finding the Fourth Proportional to 1,992.92, 2,750.01 and 1,153.46

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Solution

The fourth proportional to 1,992.92, 2,750.01 and 1,153.46 is: 1,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.92 : 2,750.01 = 1,153.46 : x
  2. Step 2: Convert to fraction form
    1,992.92/2,750.01 = 1,153.46/x
  3. Step 3: Cross multiply
    1,992.92x = 2,750.01 × 1,153.46
  4. Step 4: Simplify right side
    1,992.92x = 3,172,026.53
  5. Step 5: Solve for x
    x = 3,172,026.53/1,992.92
  6. Step 6: Final answer
    x = 1,591.65

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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.