Home / 3,191.94-4,406.11-1,866.08

Finding the Fourth Proportional to 3,191.94, 4,406.11 and 1,866.08

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Solution

The fourth proportional to 3,191.94, 4,406.11 and 1,866.08 is: 2,575.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.94 : 4,406.11 = 1,866.08 : x
  2. Step 2: Convert to fraction form
    3,191.94/4,406.11 = 1,866.08/x
  3. Step 3: Cross multiply
    3,191.94x = 4,406.11 × 1,866.08
  4. Step 4: Simplify right side
    3,191.94x = 8,222,160.10
  5. Step 5: Solve for x
    x = 8,222,160.10/3,191.94
  6. Step 6: Final answer
    x = 2,575.91

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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.