Home / 3,128.39-4,691.66-1,484.49

Finding the Fourth Proportional to 3,128.39, 4,691.66 and 1,484.49

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Solution

The fourth proportional to 3,128.39, 4,691.66 and 1,484.49 is: 2,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.39 : 4,691.66 = 1,484.49 : x
  2. Step 2: Convert to fraction form
    3,128.39/4,691.66 = 1,484.49/x
  3. Step 3: Cross multiply
    3,128.39x = 4,691.66 × 1,484.49
  4. Step 4: Simplify right side
    3,128.39x = 6,964,714.93
  5. Step 5: Solve for x
    x = 6,964,714.93/3,128.39
  6. Step 6: Final answer
    x = 2,226.30

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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.