Home / 3,219.28-4,442.25-1,962.16

Finding the Fourth Proportional to 3,219.28, 4,442.25 and 1,962.16

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Solution

The fourth proportional to 3,219.28, 4,442.25 and 1,962.16 is: 2,707.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.28 : 4,442.25 = 1,962.16 : x
  2. Step 2: Convert to fraction form
    3,219.28/4,442.25 = 1,962.16/x
  3. Step 3: Cross multiply
    3,219.28x = 4,442.25 × 1,962.16
  4. Step 4: Simplify right side
    3,219.28x = 8,716,405.26
  5. Step 5: Solve for x
    x = 8,716,405.26/3,219.28
  6. Step 6: Final answer
    x = 2,707.56

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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.