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Finding the Fourth Proportional to 1,027.41, 1,417.30 and 695.71

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Solution

The fourth proportional to 1,027.41, 1,417.30 and 695.71 is: 959.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027.41 : 1,417.30 = 695.71 : x
  2. Step 2: Convert to fraction form
    1,027.41/1,417.30 = 695.71/x
  3. Step 3: Cross multiply
    1,027.41x = 1,417.30 × 695.71
  4. Step 4: Simplify right side
    1,027.41x = 986,026.30
  5. Step 5: Solve for x
    x = 986,026.30/1,027.41
  6. Step 6: Final answer
    x = 959.73

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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.