Home / 4,010.90-6,012.30-1,821.20

Finding the Fourth Proportional to 4,010.90, 6,012.30 and 1,821.20

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Solution

The fourth proportional to 4,010.90, 6,012.30 and 1,821.20 is: 2,729.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,010.90 : 6,012.30 = 1,821.20 : x
  2. Step 2: Convert to fraction form
    4,010.90/6,012.30 = 1,821.20/x
  3. Step 3: Cross multiply
    4,010.90x = 6,012.30 × 1,821.20
  4. Step 4: Simplify right side
    4,010.90x = 10,949,600.76
  5. Step 5: Solve for x
    x = 10,949,600.76/4,010.90
  6. Step 6: Final answer
    x = 2,729.96

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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.