Home / 3,973.88-5,479.28-3,225.48

Finding the Fourth Proportional to 3,973.88, 5,479.28 and 3,225.48

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Solution

The fourth proportional to 3,973.88, 5,479.28 and 3,225.48 is: 4,447.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.88 : 5,479.28 = 3,225.48 : x
  2. Step 2: Convert to fraction form
    3,973.88/5,479.28 = 3,225.48/x
  3. Step 3: Cross multiply
    3,973.88x = 5,479.28 × 3,225.48
  4. Step 4: Simplify right side
    3,973.88x = 17,673,308.05
  5. Step 5: Solve for x
    x = 17,673,308.05/3,973.88
  6. Step 6: Final answer
    x = 4,447.37

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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.