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Finding the Fourth Proportional to 1,481.67, 2,223.09 and 703.17

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Solution

The fourth proportional to 1,481.67, 2,223.09 and 703.17 is: 1,055.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.67 : 2,223.09 = 703.17 : x
  2. Step 2: Convert to fraction form
    1,481.67/2,223.09 = 703.17/x
  3. Step 3: Cross multiply
    1,481.67x = 2,223.09 × 703.17
  4. Step 4: Simplify right side
    1,481.67x = 1,563,210.20
  5. Step 5: Solve for x
    x = 1,563,210.20/1,481.67
  6. Step 6: Final answer
    x = 1,055.03

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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.