Home / 5,322.16-7,963.80-3,131.92

Finding the Fourth Proportional to 5,322.16, 7,963.80 and 3,131.92

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Solution

The fourth proportional to 5,322.16, 7,963.80 and 3,131.92 is: 4,686.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,322.16 : 7,963.80 = 3,131.92 : x
  2. Step 2: Convert to fraction form
    5,322.16/7,963.80 = 3,131.92/x
  3. Step 3: Cross multiply
    5,322.16x = 7,963.80 × 3,131.92
  4. Step 4: Simplify right side
    5,322.16x = 24,941,984.50
  5. Step 5: Solve for x
    x = 24,941,984.50/5,322.16
  6. Step 6: Final answer
    x = 4,686.44

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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.