Home / 5,784.87-7,983.12-3,132.28

Finding the Fourth Proportional to 5,784.87, 7,983.12 and 3,132.28

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Solution

The fourth proportional to 5,784.87, 7,983.12 and 3,132.28 is: 4,322.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,784.87 : 7,983.12 = 3,132.28 : x
  2. Step 2: Convert to fraction form
    5,784.87/7,983.12 = 3,132.28/x
  3. Step 3: Cross multiply
    5,784.87x = 7,983.12 × 3,132.28
  4. Step 4: Simplify right side
    5,784.87x = 25,005,367.11
  5. Step 5: Solve for x
    x = 25,005,367.11/5,784.87
  6. Step 6: Final answer
    x = 4,322.55

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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.