Home / 1,979.32-2,731.33-1,095.06

Finding the Fourth Proportional to 1,979.32, 2,731.33 and 1,095.06

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Solution

The fourth proportional to 1,979.32, 2,731.33 and 1,095.06 is: 1,511.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.32 : 2,731.33 = 1,095.06 : x
  2. Step 2: Convert to fraction form
    1,979.32/2,731.33 = 1,095.06/x
  3. Step 3: Cross multiply
    1,979.32x = 2,731.33 × 1,095.06
  4. Step 4: Simplify right side
    1,979.32x = 2,990,970.23
  5. Step 5: Solve for x
    x = 2,990,970.23/1,979.32
  6. Step 6: Final answer
    x = 1,511.11

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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.