Home / 3,084.78-4,257.12-1,758.70

Finding the Fourth Proportional to 3,084.78, 4,257.12 and 1,758.70

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Solution

The fourth proportional to 3,084.78, 4,257.12 and 1,758.70 is: 2,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.78 : 4,257.12 = 1,758.70 : x
  2. Step 2: Convert to fraction form
    3,084.78/4,257.12 = 1,758.70/x
  3. Step 3: Cross multiply
    3,084.78x = 4,257.12 × 1,758.70
  4. Step 4: Simplify right side
    3,084.78x = 7,486,996.94
  5. Step 5: Solve for x
    x = 7,486,996.94/3,084.78
  6. Step 6: Final answer
    x = 2,427.08

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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.