Home / 3,828.20-5,742.30-3,342.20

Finding the Fourth Proportional to 3,828.20, 5,742.30 and 3,342.20

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Solution

The fourth proportional to 3,828.20, 5,742.30 and 3,342.20 is: 5,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.20 : 5,742.30 = 3,342.20 : x
  2. Step 2: Convert to fraction form
    3,828.20/5,742.30 = 3,342.20/x
  3. Step 3: Cross multiply
    3,828.20x = 5,742.30 × 3,342.20
  4. Step 4: Simplify right side
    3,828.20x = 19,191,915.06
  5. Step 5: Solve for x
    x = 19,191,915.06/3,828.20
  6. Step 6: Final answer
    x = 5,013.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.