Home / 3,103.20-4,646.70-2,001.60

Finding the Fourth Proportional to 3,103.20, 4,646.70 and 2,001.60

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Solution

The fourth proportional to 3,103.20, 4,646.70 and 2,001.60 is: 2,997.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.20 : 4,646.70 = 2,001.60 : x
  2. Step 2: Convert to fraction form
    3,103.20/4,646.70 = 2,001.60/x
  3. Step 3: Cross multiply
    3,103.20x = 4,646.70 × 2,001.60
  4. Step 4: Simplify right side
    3,103.20x = 9,300,834.72
  5. Step 5: Solve for x
    x = 9,300,834.72/3,103.20
  6. Step 6: Final answer
    x = 2,997.18

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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.