Home / 3,151.21-4,348.63-1,753.96

Finding the Fourth Proportional to 3,151.21, 4,348.63 and 1,753.96

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Solution

The fourth proportional to 3,151.21, 4,348.63 and 1,753.96 is: 2,420.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.21 : 4,348.63 = 1,753.96 : x
  2. Step 2: Convert to fraction form
    3,151.21/4,348.63 = 1,753.96/x
  3. Step 3: Cross multiply
    3,151.21x = 4,348.63 × 1,753.96
  4. Step 4: Simplify right side
    3,151.21x = 7,627,318.69
  5. Step 5: Solve for x
    x = 7,627,318.69/3,151.21
  6. Step 6: Final answer
    x = 2,420.44

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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.