Home / 1,549.73-2,322.32-1,221.45

Finding the Fourth Proportional to 1,549.73, 2,322.32 and 1,221.45

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Solution

The fourth proportional to 1,549.73, 2,322.32 and 1,221.45 is: 1,830.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.73 : 2,322.32 = 1,221.45 : x
  2. Step 2: Convert to fraction form
    1,549.73/2,322.32 = 1,221.45/x
  3. Step 3: Cross multiply
    1,549.73x = 2,322.32 × 1,221.45
  4. Step 4: Simplify right side
    1,549.73x = 2,836,609.41
  5. Step 5: Solve for x
    x = 2,836,609.41/1,549.73
  6. Step 6: Final answer
    x = 1,830.39

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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.