Home / 3,078.32-4,618.47-1,102.62

Finding the Fourth Proportional to 3,078.32, 4,618.47 and 1,102.62

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Solution

The fourth proportional to 3,078.32, 4,618.47 and 1,102.62 is: 1,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.32 : 4,618.47 = 1,102.62 : x
  2. Step 2: Convert to fraction form
    3,078.32/4,618.47 = 1,102.62/x
  3. Step 3: Cross multiply
    3,078.32x = 4,618.47 × 1,102.62
  4. Step 4: Simplify right side
    3,078.32x = 5,092,395.94
  5. Step 5: Solve for x
    x = 5,092,395.94/3,078.32
  6. Step 6: Final answer
    x = 1,654.28

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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.