Home / 3,084.82-4,257.02-1,687.58

Finding the Fourth Proportional to 3,084.82, 4,257.02 and 1,687.58

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Solution

The fourth proportional to 3,084.82, 4,257.02 and 1,687.58 is: 2,328.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.82 : 4,257.02 = 1,687.58 : x
  2. Step 2: Convert to fraction form
    3,084.82/4,257.02 = 1,687.58/x
  3. Step 3: Cross multiply
    3,084.82x = 4,257.02 × 1,687.58
  4. Step 4: Simplify right side
    3,084.82x = 7,184,061.81
  5. Step 5: Solve for x
    x = 7,184,061.81/3,084.82
  6. Step 6: Final answer
    x = 2,328.84

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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.