Home / 3,972.88-5,477.90-3,224.48

Finding the Fourth Proportional to 3,972.88, 5,477.90 and 3,224.48

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Solution

The fourth proportional to 3,972.88, 5,477.90 and 3,224.48 is: 4,445.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.88 : 5,477.90 = 3,224.48 : x
  2. Step 2: Convert to fraction form
    3,972.88/5,477.90 = 3,224.48/x
  3. Step 3: Cross multiply
    3,972.88x = 5,477.90 × 3,224.48
  4. Step 4: Simplify right side
    3,972.88x = 17,663,378.99
  5. Step 5: Solve for x
    x = 17,663,378.99/3,972.88
  6. Step 6: Final answer
    x = 4,445.99

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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.