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Finding the Fourth Proportional to 5,687.34, 8,532.12 and 1,790.82

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Solution

The fourth proportional to 5,687.34, 8,532.12 and 1,790.82 is: 2,686.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.34 : 8,532.12 = 1,790.82 : x
  2. Step 2: Convert to fraction form
    5,687.34/8,532.12 = 1,790.82/x
  3. Step 3: Cross multiply
    5,687.34x = 8,532.12 × 1,790.82
  4. Step 4: Simplify right side
    5,687.34x = 15,279,491.14
  5. Step 5: Solve for x
    x = 15,279,491.14/5,687.34
  6. Step 6: Final answer
    x = 2,686.58

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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.