Home / 3,824.28-5,280.26-2,643.30

Finding the Fourth Proportional to 3,824.28, 5,280.26 and 2,643.30

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Solution

The fourth proportional to 3,824.28, 5,280.26 and 2,643.30 is: 3,649.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,824.28 : 5,280.26 = 2,643.30 : x
  2. Step 2: Convert to fraction form
    3,824.28/5,280.26 = 2,643.30/x
  3. Step 3: Cross multiply
    3,824.28x = 5,280.26 × 2,643.30
  4. Step 4: Simplify right side
    3,824.28x = 13,957,311.26
  5. Step 5: Solve for x
    x = 13,957,311.26/3,824.28
  6. Step 6: Final answer
    x = 3,649.66

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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.