Home / 3,191.10-4,405.87-2,853.95

Finding the Fourth Proportional to 3,191.10, 4,405.87 and 2,853.95

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Solution

The fourth proportional to 3,191.10, 4,405.87 and 2,853.95 is: 3,940.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.10 : 4,405.87 = 2,853.95 : x
  2. Step 2: Convert to fraction form
    3,191.10/4,405.87 = 2,853.95/x
  3. Step 3: Cross multiply
    3,191.10x = 4,405.87 × 2,853.95
  4. Step 4: Simplify right side
    3,191.10x = 12,574,132.69
  5. Step 5: Solve for x
    x = 12,574,132.69/3,191.10
  6. Step 6: Final answer
    x = 3,940.38

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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.