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Finding the Fourth Proportional to 1,355.65, 2,033.97 and 533.47

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Solution

The fourth proportional to 1,355.65, 2,033.97 and 533.47 is: 800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355.65 : 2,033.97 = 533.47 : x
  2. Step 2: Convert to fraction form
    1,355.65/2,033.97 = 533.47/x
  3. Step 3: Cross multiply
    1,355.65x = 2,033.97 × 533.47
  4. Step 4: Simplify right side
    1,355.65x = 1,085,061.98
  5. Step 5: Solve for x
    x = 1,085,061.98/1,355.65
  6. Step 6: Final answer
    x = 800.40

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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.