Home / 2,191.55-3,023.78-2,095.86

Finding the Fourth Proportional to 2,191.55, 3,023.78 and 2,095.86

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Solution

The fourth proportional to 2,191.55, 3,023.78 and 2,095.86 is: 2,891.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.55 : 3,023.78 = 2,095.86 : x
  2. Step 2: Convert to fraction form
    2,191.55/3,023.78 = 2,095.86/x
  3. Step 3: Cross multiply
    2,191.55x = 3,023.78 × 2,095.86
  4. Step 4: Simplify right side
    2,191.55x = 6,337,409.07
  5. Step 5: Solve for x
    x = 6,337,409.07/2,191.55
  6. Step 6: Final answer
    x = 2,891.75

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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.