Home / 3,191.55-4,404.51-1,866.03

Finding the Fourth Proportional to 3,191.55, 4,404.51 and 1,866.03

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Solution

The fourth proportional to 3,191.55, 4,404.51 and 1,866.03 is: 2,575.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.55 : 4,404.51 = 1,866.03 : x
  2. Step 2: Convert to fraction form
    3,191.55/4,404.51 = 1,866.03/x
  3. Step 3: Cross multiply
    3,191.55x = 4,404.51 × 1,866.03
  4. Step 4: Simplify right side
    3,191.55x = 8,218,947.80
  5. Step 5: Solve for x
    x = 8,218,947.80/3,191.55
  6. Step 6: Final answer
    x = 2,575.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.