Home / 4,012.48-6,009.90-3,311.20

Finding the Fourth Proportional to 4,012.48, 6,009.90 and 3,311.20

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Solution

The fourth proportional to 4,012.48, 6,009.90 and 3,311.20 is: 4,959.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,012.48 : 6,009.90 = 3,311.20 : x
  2. Step 2: Convert to fraction form
    4,012.48/6,009.90 = 3,311.20/x
  3. Step 3: Cross multiply
    4,012.48x = 6,009.90 × 3,311.20
  4. Step 4: Simplify right side
    4,012.48x = 19,899,980.88
  5. Step 5: Solve for x
    x = 19,899,980.88/4,012.48
  6. Step 6: Final answer
    x = 4,959.52

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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.