Home / 3,960.30-5,465.08-2,191.66

Finding the Fourth Proportional to 3,960.30, 5,465.08 and 2,191.66

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Solution

The fourth proportional to 3,960.30, 5,465.08 and 2,191.66 is: 3,024.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.30 : 5,465.08 = 2,191.66 : x
  2. Step 2: Convert to fraction form
    3,960.30/5,465.08 = 2,191.66/x
  3. Step 3: Cross multiply
    3,960.30x = 5,465.08 × 2,191.66
  4. Step 4: Simplify right side
    3,960.30x = 11,977,597.23
  5. Step 5: Solve for x
    x = 11,977,597.23/3,960.30
  6. Step 6: Final answer
    x = 3,024.42

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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.