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Finding the Fourth Proportional to 5,645.65, 8,473.67 and 2,874.32

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Solution

The fourth proportional to 5,645.65, 8,473.67 and 2,874.32 is: 4,314.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.65 : 8,473.67 = 2,874.32 : x
  2. Step 2: Convert to fraction form
    5,645.65/8,473.67 = 2,874.32/x
  3. Step 3: Cross multiply
    5,645.65x = 8,473.67 × 2,874.32
  4. Step 4: Simplify right side
    5,645.65x = 24,356,003.97
  5. Step 5: Solve for x
    x = 24,356,003.97/5,645.65
  6. Step 6: Final answer
    x = 4,314.12

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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.