Home / 3,354.72-5,029.20-1,622.40

Finding the Fourth Proportional to 3,354.72, 5,029.20 and 1,622.40

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Solution

The fourth proportional to 3,354.72, 5,029.20 and 1,622.40 is: 2,432.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,354.72 : 5,029.20 = 1,622.40 : x
  2. Step 2: Convert to fraction form
    3,354.72/5,029.20 = 1,622.40/x
  3. Step 3: Cross multiply
    3,354.72x = 5,029.20 × 1,622.40
  4. Step 4: Simplify right side
    3,354.72x = 8,159,374.08
  5. Step 5: Solve for x
    x = 8,159,374.08/3,354.72
  6. Step 6: Final answer
    x = 2,432.21

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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.