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Finding the Fourth Proportional to 2,695.38, 3,718.02 and 1,645.62

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Solution

The fourth proportional to 2,695.38, 3,718.02 and 1,645.62 is: 2,269.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.38 : 3,718.02 = 1,645.62 : x
  2. Step 2: Convert to fraction form
    2,695.38/3,718.02 = 1,645.62/x
  3. Step 3: Cross multiply
    2,695.38x = 3,718.02 × 1,645.62
  4. Step 4: Simplify right side
    2,695.38x = 6,118,448.07
  5. Step 5: Solve for x
    x = 6,118,448.07/2,695.38
  6. Step 6: Final answer
    x = 2,269.98

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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.