Home / 3,171.30-4,756.56-1,322.64

Finding the Fourth Proportional to 3,171.30, 4,756.56 and 1,322.64

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Solution

The fourth proportional to 3,171.30, 4,756.56 and 1,322.64 is: 1,983.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.30 : 4,756.56 = 1,322.64 : x
  2. Step 2: Convert to fraction form
    3,171.30/4,756.56 = 1,322.64/x
  3. Step 3: Cross multiply
    3,171.30x = 4,756.56 × 1,322.64
  4. Step 4: Simplify right side
    3,171.30x = 6,291,216.52
  5. Step 5: Solve for x
    x = 6,291,216.52/3,171.30
  6. Step 6: Final answer
    x = 1,983.80

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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.