Home / 1,979.21-2,731.03-1,095.01

Finding the Fourth Proportional to 1,979.21, 2,731.03 and 1,095.01

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Solution

The fourth proportional to 1,979.21, 2,731.03 and 1,095.01 is: 1,510.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.21 : 2,731.03 = 1,095.01 : x
  2. Step 2: Convert to fraction form
    1,979.21/2,731.03 = 1,095.01/x
  3. Step 3: Cross multiply
    1,979.21x = 2,731.03 × 1,095.01
  4. Step 4: Simplify right side
    1,979.21x = 2,990,505.16
  5. Step 5: Solve for x
    x = 2,990,505.16/1,979.21
  6. Step 6: Final answer
    x = 1,510.96

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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.