Home / 2,759.36-4,139.94-1,298.66

Finding the Fourth Proportional to 2,759.36, 4,139.94 and 1,298.66

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Solution

The fourth proportional to 2,759.36, 4,139.94 and 1,298.66 is: 1,948.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.36 : 4,139.94 = 1,298.66 : x
  2. Step 2: Convert to fraction form
    2,759.36/4,139.94 = 1,298.66/x
  3. Step 3: Cross multiply
    2,759.36x = 4,139.94 × 1,298.66
  4. Step 4: Simplify right side
    2,759.36x = 5,376,374.48
  5. Step 5: Solve for x
    x = 5,376,374.48/2,759.36
  6. Step 6: Final answer
    x = 1,948.41

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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.