Home / 3,959.99-5,464.55-2,191.49

Finding the Fourth Proportional to 3,959.99, 5,464.55 and 2,191.49

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Solution

The fourth proportional to 3,959.99, 5,464.55 and 2,191.49 is: 3,024.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.99 : 5,464.55 = 2,191.49 : x
  2. Step 2: Convert to fraction form
    3,959.99/5,464.55 = 2,191.49/x
  3. Step 3: Cross multiply
    3,959.99x = 5,464.55 × 2,191.49
  4. Step 4: Simplify right side
    3,959.99x = 11,975,525.82
  5. Step 5: Solve for x
    x = 11,975,525.82/3,959.99
  6. Step 6: Final answer
    x = 3,024.13

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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.