Home / 2,079.74-2,869.00-1,239.85

Finding the Fourth Proportional to 2,079.74, 2,869.00 and 1,239.85

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Solution

The fourth proportional to 2,079.74, 2,869.00 and 1,239.85 is: 1,710.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.74 : 2,869.00 = 1,239.85 : x
  2. Step 2: Convert to fraction form
    2,079.74/2,869.00 = 1,239.85/x
  3. Step 3: Cross multiply
    2,079.74x = 2,869.00 × 1,239.85
  4. Step 4: Simplify right side
    2,079.74x = 3,557,131.85
  5. Step 5: Solve for x
    x = 3,557,131.85/2,079.74
  6. Step 6: Final answer
    x = 1,710.37

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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.