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Finding the Fourth Proportional to 2,169.64, 2,995.14 and 1,237.96

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Solution

The fourth proportional to 2,169.64, 2,995.14 and 1,237.96 is: 1,708.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.64 : 2,995.14 = 1,237.96 : x
  2. Step 2: Convert to fraction form
    2,169.64/2,995.14 = 1,237.96/x
  3. Step 3: Cross multiply
    2,169.64x = 2,995.14 × 1,237.96
  4. Step 4: Simplify right side
    2,169.64x = 3,707,863.51
  5. Step 5: Solve for x
    x = 3,707,863.51/2,169.64
  6. Step 6: Final answer
    x = 1,708.98

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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.