Home / 1,979.77-2,732.08-1,095.58

Finding the Fourth Proportional to 1,979.77, 2,732.08 and 1,095.58

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Solution

The fourth proportional to 1,979.77, 2,732.08 and 1,095.58 is: 1,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.77 : 2,732.08 = 1,095.58 : x
  2. Step 2: Convert to fraction form
    1,979.77/2,732.08 = 1,095.58/x
  3. Step 3: Cross multiply
    1,979.77x = 2,732.08 × 1,095.58
  4. Step 4: Simplify right side
    1,979.77x = 2,993,199.57
  5. Step 5: Solve for x
    x = 2,993,199.57/1,979.77
  6. Step 6: Final answer
    x = 1,511.90

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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.