Home / 2,921.50-4,033.50-2,257.12

Finding the Fourth Proportional to 2,921.50, 4,033.50 and 2,257.12

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Solution

The fourth proportional to 2,921.50, 4,033.50 and 2,257.12 is: 3,116.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.50 : 4,033.50 = 2,257.12 : x
  2. Step 2: Convert to fraction form
    2,921.50/4,033.50 = 2,257.12/x
  3. Step 3: Cross multiply
    2,921.50x = 4,033.50 × 2,257.12
  4. Step 4: Simplify right side
    2,921.50x = 9,104,093.52
  5. Step 5: Solve for x
    x = 9,104,093.52/2,921.50
  6. Step 6: Final answer
    x = 3,116.24

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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.