Home / 3,943.99-5,442.69-2,151.46

Finding the Fourth Proportional to 3,943.99, 5,442.69 and 2,151.46

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Solution

The fourth proportional to 3,943.99, 5,442.69 and 2,151.46 is: 2,969.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.99 : 5,442.69 = 2,151.46 : x
  2. Step 2: Convert to fraction form
    3,943.99/5,442.69 = 2,151.46/x
  3. Step 3: Cross multiply
    3,943.99x = 5,442.69 × 2,151.46
  4. Step 4: Simplify right side
    3,943.99x = 11,709,719.07
  5. Step 5: Solve for x
    x = 11,709,719.07/3,943.99
  6. Step 6: Final answer
    x = 2,969.01

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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.