Home / 2,215.56-3,322.80-1,489.53

Finding the Fourth Proportional to 2,215.56, 3,322.80 and 1,489.53

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Solution

The fourth proportional to 2,215.56, 3,322.80 and 1,489.53 is: 2,233.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.56 : 3,322.80 = 1,489.53 : x
  2. Step 2: Convert to fraction form
    2,215.56/3,322.80 = 1,489.53/x
  3. Step 3: Cross multiply
    2,215.56x = 3,322.80 × 1,489.53
  4. Step 4: Simplify right side
    2,215.56x = 4,949,410.28
  5. Step 5: Solve for x
    x = 4,949,410.28/2,215.56
  6. Step 6: Final answer
    x = 2,233.93

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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.