Home / 3,171.36-4,750.56-2,551.68

Finding the Fourth Proportional to 3,171.36, 4,750.56 and 2,551.68

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Solution

The fourth proportional to 3,171.36, 4,750.56 and 2,551.68 is: 3,822.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.36 : 4,750.56 = 2,551.68 : x
  2. Step 2: Convert to fraction form
    3,171.36/4,750.56 = 2,551.68/x
  3. Step 3: Cross multiply
    3,171.36x = 4,750.56 × 2,551.68
  4. Step 4: Simplify right side
    3,171.36x = 12,121,908.94
  5. Step 5: Solve for x
    x = 12,121,908.94/3,171.36
  6. Step 6: Final answer
    x = 3,822.31

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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.