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Finding the Fourth Proportional to 1,343.88, 2,016.50 and 910.13

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Solution

The fourth proportional to 1,343.88, 2,016.50 and 910.13 is: 1,365.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.88 : 2,016.50 = 910.13 : x
  2. Step 2: Convert to fraction form
    1,343.88/2,016.50 = 910.13/x
  3. Step 3: Cross multiply
    1,343.88x = 2,016.50 × 910.13
  4. Step 4: Simplify right side
    1,343.88x = 1,835,262.51
  5. Step 5: Solve for x
    x = 1,835,262.51/1,343.88
  6. Step 6: Final answer
    x = 1,365.64

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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.