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Finding the Fourth Proportional to 3,487.47, 5,231.03 and 1,022.19

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Solution

The fourth proportional to 3,487.47, 5,231.03 and 1,022.19 is: 1,533.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.47 : 5,231.03 = 1,022.19 : x
  2. Step 2: Convert to fraction form
    3,487.47/5,231.03 = 1,022.19/x
  3. Step 3: Cross multiply
    3,487.47x = 5,231.03 × 1,022.19
  4. Step 4: Simplify right side
    3,487.47x = 5,347,131.72
  5. Step 5: Solve for x
    x = 5,347,131.72/3,487.47
  6. Step 6: Final answer
    x = 1,533.24

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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.