Home / 1,990.79-2,747.32-1,094.61

Finding the Fourth Proportional to 1,990.79, 2,747.32 and 1,094.61

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Solution

The fourth proportional to 1,990.79, 2,747.32 and 1,094.61 is: 1,510.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990.79 : 2,747.32 = 1,094.61 : x
  2. Step 2: Convert to fraction form
    1,990.79/2,747.32 = 1,094.61/x
  3. Step 3: Cross multiply
    1,990.79x = 2,747.32 × 1,094.61
  4. Step 4: Simplify right side
    1,990.79x = 3,007,241.21
  5. Step 5: Solve for x
    x = 3,007,241.21/1,990.79
  6. Step 6: Final answer
    x = 1,510.58

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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.