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Finding the Fourth Proportional to 3,211.52, 4,431.86 and 1,795.12

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Solution

The fourth proportional to 3,211.52, 4,431.86 and 1,795.12 is: 2,477.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.52 : 4,431.86 = 1,795.12 : x
  2. Step 2: Convert to fraction form
    3,211.52/4,431.86 = 1,795.12/x
  3. Step 3: Cross multiply
    3,211.52x = 4,431.86 × 1,795.12
  4. Step 4: Simplify right side
    3,211.52x = 7,955,720.52
  5. Step 5: Solve for x
    x = 7,955,720.52/3,211.52
  6. Step 6: Final answer
    x = 2,477.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.