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Finding the Fourth Proportional to 1,252.92, 1,879.42 and 603.32

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Solution

The fourth proportional to 1,252.92, 1,879.42 and 603.32 is: 905.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.92 : 1,879.42 = 603.32 : x
  2. Step 2: Convert to fraction form
    1,252.92/1,879.42 = 603.32/x
  3. Step 3: Cross multiply
    1,252.92x = 1,879.42 × 603.32
  4. Step 4: Simplify right side
    1,252.92x = 1,133,891.67
  5. Step 5: Solve for x
    x = 1,133,891.67/1,252.92
  6. Step 6: Final answer
    x = 905.00

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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.