Home / 3,061.89-4,231.44-2,315.57

Finding the Fourth Proportional to 3,061.89, 4,231.44 and 2,315.57

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Solution

The fourth proportional to 3,061.89, 4,231.44 and 2,315.57 is: 3,200.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.89 : 4,231.44 = 2,315.57 : x
  2. Step 2: Convert to fraction form
    3,061.89/4,231.44 = 2,315.57/x
  3. Step 3: Cross multiply
    3,061.89x = 4,231.44 × 2,315.57
  4. Step 4: Simplify right side
    3,061.89x = 9,798,174.36
  5. Step 5: Solve for x
    x = 9,798,174.36/3,061.89
  6. Step 6: Final answer
    x = 3,200.04

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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.