Home / 3,084.75-4,257.05-1,687.59

Finding the Fourth Proportional to 3,084.75, 4,257.05 and 1,687.59

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Solution

The fourth proportional to 3,084.75, 4,257.05 and 1,687.59 is: 2,328.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.75 : 4,257.05 = 1,687.59 : x
  2. Step 2: Convert to fraction form
    3,084.75/4,257.05 = 1,687.59/x
  3. Step 3: Cross multiply
    3,084.75x = 4,257.05 × 1,687.59
  4. Step 4: Simplify right side
    3,084.75x = 7,184,146.57
  5. Step 5: Solve for x
    x = 7,184,146.57/3,084.75
  6. Step 6: Final answer
    x = 2,328.92

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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.