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Finding the Fourth Proportional to 5,671.87, 8,507.13 and 1,512.19

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Solution

The fourth proportional to 5,671.87, 8,507.13 and 1,512.19 is: 2,268.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.87 : 8,507.13 = 1,512.19 : x
  2. Step 2: Convert to fraction form
    5,671.87/8,507.13 = 1,512.19/x
  3. Step 3: Cross multiply
    5,671.87x = 8,507.13 × 1,512.19
  4. Step 4: Simplify right side
    5,671.87x = 12,864,396.91
  5. Step 5: Solve for x
    x = 12,864,396.91/5,671.87
  6. Step 6: Final answer
    x = 2,268.11

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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.