Home / 4,140.20-6,211.40-1,799.20

Finding the Fourth Proportional to 4,140.20, 6,211.40 and 1,799.20

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Solution

The fourth proportional to 4,140.20, 6,211.40 and 1,799.20 is: 2,699.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.20 : 6,211.40 = 1,799.20 : x
  2. Step 2: Convert to fraction form
    4,140.20/6,211.40 = 1,799.20/x
  3. Step 3: Cross multiply
    4,140.20x = 6,211.40 × 1,799.20
  4. Step 4: Simplify right side
    4,140.20x = 11,175,550.88
  5. Step 5: Solve for x
    x = 11,175,550.88/4,140.20
  6. Step 6: Final answer
    x = 2,699.28

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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.