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Finding the Fourth Proportional to 1,027.02, 1,418.13 and 695.46

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Solution

The fourth proportional to 1,027.02, 1,418.13 and 695.46 is: 960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027.02 : 1,418.13 = 695.46 : x
  2. Step 2: Convert to fraction form
    1,027.02/1,418.13 = 695.46/x
  3. Step 3: Cross multiply
    1,027.02x = 1,418.13 × 695.46
  4. Step 4: Simplify right side
    1,027.02x = 986,252.69
  5. Step 5: Solve for x
    x = 986,252.69/1,027.02
  6. Step 6: Final answer
    x = 960.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.