Home / 4,147.78-5,723.94-2,284.78

Finding the Fourth Proportional to 4,147.78, 5,723.94 and 2,284.78

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Solution

The fourth proportional to 4,147.78, 5,723.94 and 2,284.78 is: 3,153.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.78 : 5,723.94 = 2,284.78 : x
  2. Step 2: Convert to fraction form
    4,147.78/5,723.94 = 2,284.78/x
  3. Step 3: Cross multiply
    4,147.78x = 5,723.94 × 2,284.78
  4. Step 4: Simplify right side
    4,147.78x = 13,077,943.63
  5. Step 5: Solve for x
    x = 13,077,943.63/4,147.78
  6. Step 6: Final answer
    x = 3,153.00

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1.5x scale

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.