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Finding the Fourth Proportional to 2,221.52, 3,332.14 and 923.00

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Solution

The fourth proportional to 2,221.52, 3,332.14 and 923.00 is: 1,384.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.52 : 3,332.14 = 923.00 : x
  2. Step 2: Convert to fraction form
    2,221.52/3,332.14 = 923.00/x
  3. Step 3: Cross multiply
    2,221.52x = 3,332.14 × 923.00
  4. Step 4: Simplify right side
    2,221.52x = 3,075,546.25
  5. Step 5: Solve for x
    x = 3,075,546.25/2,221.52
  6. Step 6: Final answer
    x = 1,384.44

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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.