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Finding the Fourth Proportional to 1,262.17, 1,741.78 and 695.04

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Solution

The fourth proportional to 1,262.17, 1,741.78 and 695.04 is: 959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.17 : 1,741.78 = 695.04 : x
  2. Step 2: Convert to fraction form
    1,262.17/1,741.78 = 695.04/x
  3. Step 3: Cross multiply
    1,262.17x = 1,741.78 × 695.04
  4. Step 4: Simplify right side
    1,262.17x = 1,210,594.59
  5. Step 5: Solve for x
    x = 1,210,594.59/1,262.17
  6. Step 6: Final answer
    x = 959.14

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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.