Home / 9,191.91-13,790.03-2,618.19

Finding the Fourth Proportional to 9,191.91, 13,790.03 and 2,618.19

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Solution

The fourth proportional to 9,191.91, 13,790.03 and 2,618.19 is: 3,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191.91 : 13,790.03 = 2,618.19 : x
  2. Step 2: Convert to fraction form
    9,191.91/13,790.03 = 2,618.19/x
  3. Step 3: Cross multiply
    9,191.91x = 13,790.03 × 2,618.19
  4. Step 4: Simplify right side
    9,191.91x = 36,104,905.55
  5. Step 5: Solve for x
    x = 36,104,905.55/9,191.91
  6. Step 6: Final answer
    x = 3,927.90

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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.