Home / 3,820.45-5,272.28-2,328.43

Finding the Fourth Proportional to 3,820.45, 5,272.28 and 2,328.43

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Solution

The fourth proportional to 3,820.45, 5,272.28 and 2,328.43 is: 3,213.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.45 : 5,272.28 = 2,328.43 : x
  2. Step 2: Convert to fraction form
    3,820.45/5,272.28 = 2,328.43/x
  3. Step 3: Cross multiply
    3,820.45x = 5,272.28 × 2,328.43
  4. Step 4: Simplify right side
    3,820.45x = 12,276,134.92
  5. Step 5: Solve for x
    x = 12,276,134.92/3,820.45
  6. Step 6: Final answer
    x = 3,213.27

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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.