Home / 5,687.45-8,531.46-1,792.16

Finding the Fourth Proportional to 5,687.45, 8,531.46 and 1,792.16

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Solution

The fourth proportional to 5,687.45, 8,531.46 and 1,792.16 is: 2,688.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.45 : 8,531.46 = 1,792.16 : x
  2. Step 2: Convert to fraction form
    5,687.45/8,531.46 = 1,792.16/x
  3. Step 3: Cross multiply
    5,687.45x = 8,531.46 × 1,792.16
  4. Step 4: Simplify right side
    5,687.45x = 15,289,698.70
  5. Step 5: Solve for x
    x = 15,289,698.70/5,687.45
  6. Step 6: Final answer
    x = 2,688.32

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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.