Home / 3,147.64-4,339.73-1,968.28

Finding the Fourth Proportional to 3,147.64, 4,339.73 and 1,968.28

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Solution

The fourth proportional to 3,147.64, 4,339.73 and 1,968.28 is: 2,713.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.64 : 4,339.73 = 1,968.28 : x
  2. Step 2: Convert to fraction form
    3,147.64/4,339.73 = 1,968.28/x
  3. Step 3: Cross multiply
    3,147.64x = 4,339.73 × 1,968.28
  4. Step 4: Simplify right side
    3,147.64x = 8,541,803.76
  5. Step 5: Solve for x
    x = 8,541,803.76/3,147.64
  6. Step 6: Final answer
    x = 2,713.72

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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.