Home / 4,085.42-6,122.75-1,618.90

Finding the Fourth Proportional to 4,085.42, 6,122.75 and 1,618.90

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Solution

The fourth proportional to 4,085.42, 6,122.75 and 1,618.90 is: 2,426.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.42 : 6,122.75 = 1,618.90 : x
  2. Step 2: Convert to fraction form
    4,085.42/6,122.75 = 1,618.90/x
  3. Step 3: Cross multiply
    4,085.42x = 6,122.75 × 1,618.90
  4. Step 4: Simplify right side
    4,085.42x = 9,912,116.57
  5. Step 5: Solve for x
    x = 9,912,116.57/4,085.42
  6. Step 6: Final answer
    x = 2,426.21

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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.