Home / 3,311.20-4,959.60-2,010.40

Finding the Fourth Proportional to 3,311.20, 4,959.60 and 2,010.40

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Solution

The fourth proportional to 3,311.20, 4,959.60 and 2,010.40 is: 3,011.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.20 : 4,959.60 = 2,010.40 : x
  2. Step 2: Convert to fraction form
    3,311.20/4,959.60 = 2,010.40/x
  3. Step 3: Cross multiply
    3,311.20x = 4,959.60 × 2,010.40
  4. Step 4: Simplify right side
    3,311.20x = 9,970,779.84
  5. Step 5: Solve for x
    x = 9,970,779.84/3,311.20
  6. Step 6: Final answer
    x = 3,011.23

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1.5x scale

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.