Home / 2,079.81-2,870.19-1,195.44

Finding the Fourth Proportional to 2,079.81, 2,870.19 and 1,195.44

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Solution

The fourth proportional to 2,079.81, 2,870.19 and 1,195.44 is: 1,649.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.81 : 2,870.19 = 1,195.44 : x
  2. Step 2: Convert to fraction form
    2,079.81/2,870.19 = 1,195.44/x
  3. Step 3: Cross multiply
    2,079.81x = 2,870.19 × 1,195.44
  4. Step 4: Simplify right side
    2,079.81x = 3,431,139.93
  5. Step 5: Solve for x
    x = 3,431,139.93/2,079.81
  6. Step 6: Final answer
    x = 1,649.74

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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.