Home / 1,979.61-2,731.66-1,095.18

Finding the Fourth Proportional to 1,979.61, 2,731.66 and 1,095.18

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Solution

The fourth proportional to 1,979.61, 2,731.66 and 1,095.18 is: 1,511.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.61 : 2,731.66 = 1,095.18 : x
  2. Step 2: Convert to fraction form
    1,979.61/2,731.66 = 1,095.18/x
  3. Step 3: Cross multiply
    1,979.61x = 2,731.66 × 1,095.18
  4. Step 4: Simplify right side
    1,979.61x = 2,991,659.40
  5. Step 5: Solve for x
    x = 2,991,659.40/1,979.61
  6. Step 6: Final answer
    x = 1,511.24

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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.