Home / 2,079.10-3,118.65-1,836.10

Finding the Fourth Proportional to 2,079.10, 3,118.65 and 1,836.10

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Solution

The fourth proportional to 2,079.10, 3,118.65 and 1,836.10 is: 2,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.10 : 3,118.65 = 1,836.10 : x
  2. Step 2: Convert to fraction form
    2,079.10/3,118.65 = 1,836.10/x
  3. Step 3: Cross multiply
    2,079.10x = 3,118.65 × 1,836.10
  4. Step 4: Simplify right side
    2,079.10x = 5,726,153.27
  5. Step 5: Solve for x
    x = 5,726,153.27/2,079.10
  6. Step 6: Final answer
    x = 2,754.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.