Home / 3,612.75-4,985.72-2,215.23

Finding the Fourth Proportional to 3,612.75, 4,985.72 and 2,215.23

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Solution

The fourth proportional to 3,612.75, 4,985.72 and 2,215.23 is: 3,057.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.75 : 4,985.72 = 2,215.23 : x
  2. Step 2: Convert to fraction form
    3,612.75/4,985.72 = 2,215.23/x
  3. Step 3: Cross multiply
    3,612.75x = 4,985.72 × 2,215.23
  4. Step 4: Simplify right side
    3,612.75x = 11,044,505.44
  5. Step 5: Solve for x
    x = 11,044,505.44/3,612.75
  6. Step 6: Final answer
    x = 3,057.09

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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.