Home / 1,979.44-2,731.56-1,095.28

Finding the Fourth Proportional to 1,979.44, 2,731.56 and 1,095.28

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Solution

The fourth proportional to 1,979.44, 2,731.56 and 1,095.28 is: 1,511.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.44 : 2,731.56 = 1,095.28 : x
  2. Step 2: Convert to fraction form
    1,979.44/2,731.56 = 1,095.28/x
  3. Step 3: Cross multiply
    1,979.44x = 2,731.56 × 1,095.28
  4. Step 4: Simplify right side
    1,979.44x = 2,991,823.04
  5. Step 5: Solve for x
    x = 2,991,823.04/1,979.44
  6. Step 6: Final answer
    x = 1,511.45

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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.