Home / 3,101.10-4,647.60-2,752.80

Finding the Fourth Proportional to 3,101.10, 4,647.60 and 2,752.80

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Solution

The fourth proportional to 3,101.10, 4,647.60 and 2,752.80 is: 4,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.10 : 4,647.60 = 2,752.80 : x
  2. Step 2: Convert to fraction form
    3,101.10/4,647.60 = 2,752.80/x
  3. Step 3: Cross multiply
    3,101.10x = 4,647.60 × 2,752.80
  4. Step 4: Simplify right side
    3,101.10x = 12,793,913.28
  5. Step 5: Solve for x
    x = 12,793,913.28/3,101.10
  6. Step 6: Final answer
    x = 4,125.60

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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.