Home / 3,646.12-5,474.76-2,191.72

Finding the Fourth Proportional to 3,646.12, 5,474.76 and 2,191.72

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Solution

The fourth proportional to 3,646.12, 5,474.76 and 2,191.72 is: 3,290.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,646.12 : 5,474.76 = 2,191.72 : x
  2. Step 2: Convert to fraction form
    3,646.12/5,474.76 = 2,191.72/x
  3. Step 3: Cross multiply
    3,646.12x = 5,474.76 × 2,191.72
  4. Step 4: Simplify right side
    3,646.12x = 11,999,140.99
  5. Step 5: Solve for x
    x = 11,999,140.99/3,646.12
  6. Step 6: Final answer
    x = 3,290.93

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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.