Home / 4,191.80-6,283.98-2,109.08

Finding the Fourth Proportional to 4,191.80, 6,283.98 and 2,109.08

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Solution

The fourth proportional to 4,191.80, 6,283.98 and 2,109.08 is: 3,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.80 : 6,283.98 = 2,109.08 : x
  2. Step 2: Convert to fraction form
    4,191.80/6,283.98 = 2,109.08/x
  3. Step 3: Cross multiply
    4,191.80x = 6,283.98 × 2,109.08
  4. Step 4: Simplify right side
    4,191.80x = 13,253,416.54
  5. Step 5: Solve for x
    x = 13,253,416.54/4,191.80
  6. Step 6: Final answer
    x = 3,161.75

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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.