Home / 4,140.90-6,211.89-2,193.21

Finding the Fourth Proportional to 4,140.90, 6,211.89 and 2,193.21

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Solution

The fourth proportional to 4,140.90, 6,211.89 and 2,193.21 is: 3,290.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.90 : 6,211.89 = 2,193.21 : x
  2. Step 2: Convert to fraction form
    4,140.90/6,211.89 = 2,193.21/x
  3. Step 3: Cross multiply
    4,140.90x = 6,211.89 × 2,193.21
  4. Step 4: Simplify right side
    4,140.90x = 13,623,979.27
  5. Step 5: Solve for x
    x = 13,623,979.27/4,140.90
  6. Step 6: Final answer
    x = 3,290.10

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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.