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Finding the Fourth Proportional to 2,170.52, 3,254.95 and 937.83

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Solution

The fourth proportional to 2,170.52, 3,254.95 and 937.83 is: 1,406.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.52 : 3,254.95 = 937.83 : x
  2. Step 2: Convert to fraction form
    2,170.52/3,254.95 = 937.83/x
  3. Step 3: Cross multiply
    2,170.52x = 3,254.95 × 937.83
  4. Step 4: Simplify right side
    2,170.52x = 3,052,589.76
  5. Step 5: Solve for x
    x = 3,052,589.76/2,170.52
  6. Step 6: Final answer
    x = 1,406.39

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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.