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Finding the Fourth Proportional to 1,707.13, 2,355.78 and 1,008.37

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Solution

The fourth proportional to 1,707.13, 2,355.78 and 1,008.37 is: 1,391.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.13 : 2,355.78 = 1,008.37 : x
  2. Step 2: Convert to fraction form
    1,707.13/2,355.78 = 1,008.37/x
  3. Step 3: Cross multiply
    1,707.13x = 2,355.78 × 1,008.37
  4. Step 4: Simplify right side
    1,707.13x = 2,375,497.88
  5. Step 5: Solve for x
    x = 2,375,497.88/1,707.13
  6. Step 6: Final answer
    x = 1,391.52

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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.