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Finding the Fourth Proportional to 3,562.80, 5,344.20 and 965.74

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Solution

The fourth proportional to 3,562.80, 5,344.20 and 965.74 is: 1,448.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,562.80 : 5,344.20 = 965.74 : x
  2. Step 2: Convert to fraction form
    3,562.80/5,344.20 = 965.74/x
  3. Step 3: Cross multiply
    3,562.80x = 5,344.20 × 965.74
  4. Step 4: Simplify right side
    3,562.80x = 5,161,094.35
  5. Step 5: Solve for x
    x = 5,161,094.35/3,562.80
  6. Step 6: Final answer
    x = 1,448.61

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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.