Home / 2,759.54-4,139.28-1,297.89

Finding the Fourth Proportional to 2,759.54, 4,139.28 and 1,297.89

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Solution

The fourth proportional to 2,759.54, 4,139.28 and 1,297.89 is: 1,946.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.54 : 4,139.28 = 1,297.89 : x
  2. Step 2: Convert to fraction form
    2,759.54/4,139.28 = 1,297.89/x
  3. Step 3: Cross multiply
    2,759.54x = 4,139.28 × 1,297.89
  4. Step 4: Simplify right side
    2,759.54x = 5,372,330.12
  5. Step 5: Solve for x
    x = 5,372,330.12/2,759.54
  6. Step 6: Final answer
    x = 1,946.82

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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.