Home / 3,085.08-4,257.36-1,758.78

Finding the Fourth Proportional to 3,085.08, 4,257.36 and 1,758.78

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Solution

The fourth proportional to 3,085.08, 4,257.36 and 1,758.78 is: 2,427.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.08 : 4,257.36 = 1,758.78 : x
  2. Step 2: Convert to fraction form
    3,085.08/4,257.36 = 1,758.78/x
  3. Step 3: Cross multiply
    3,085.08x = 4,257.36 × 1,758.78
  4. Step 4: Simplify right side
    3,085.08x = 7,487,759.62
  5. Step 5: Solve for x
    x = 7,487,759.62/3,085.08
  6. Step 6: Final answer
    x = 2,427.09

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1.5x scale

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.