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Finding the Fourth Proportional to 3,568.34, 5,354.34 and 1,620.32

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Solution

The fourth proportional to 3,568.34, 5,354.34 and 1,620.32 is: 2,431.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.34 : 5,354.34 = 1,620.32 : x
  2. Step 2: Convert to fraction form
    3,568.34/5,354.34 = 1,620.32/x
  3. Step 3: Cross multiply
    3,568.34x = 5,354.34 × 1,620.32
  4. Step 4: Simplify right side
    3,568.34x = 8,675,744.19
  5. Step 5: Solve for x
    x = 8,675,744.19/3,568.34
  6. Step 6: Final answer
    x = 2,431.31

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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.