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Finding the Fourth Proportional to 1,628.57, 2,443.16 and 533.00

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Solution

The fourth proportional to 1,628.57, 2,443.16 and 533.00 is: 799.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.57 : 2,443.16 = 533.00 : x
  2. Step 2: Convert to fraction form
    1,628.57/2,443.16 = 533.00/x
  3. Step 3: Cross multiply
    1,628.57x = 2,443.16 × 533.00
  4. Step 4: Simplify right side
    1,628.57x = 1,302,189.40
  5. Step 5: Solve for x
    x = 1,302,189.40/1,628.57
  6. Step 6: Final answer
    x = 799.59

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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.