Home / 4,140.69-5,713.63-2,799.21

Finding the Fourth Proportional to 4,140.69, 5,713.63 and 2,799.21

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Solution

The fourth proportional to 4,140.69, 5,713.63 and 2,799.21 is: 3,862.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.69 : 5,713.63 = 2,799.21 : x
  2. Step 2: Convert to fraction form
    4,140.69/5,713.63 = 2,799.21/x
  3. Step 3: Cross multiply
    4,140.69x = 5,713.63 × 2,799.21
  4. Step 4: Simplify right side
    4,140.69x = 15,993,650.52
  5. Step 5: Solve for x
    x = 15,993,650.52/4,140.69
  6. Step 6: Final answer
    x = 3,862.56

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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.