Home / 3,891.07-5,364.73-2,827.98

Finding the Fourth Proportional to 3,891.07, 5,364.73 and 2,827.98

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Solution

The fourth proportional to 3,891.07, 5,364.73 and 2,827.98 is: 3,899.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.07 : 5,364.73 = 2,827.98 : x
  2. Step 2: Convert to fraction form
    3,891.07/5,364.73 = 2,827.98/x
  3. Step 3: Cross multiply
    3,891.07x = 5,364.73 × 2,827.98
  4. Step 4: Simplify right side
    3,891.07x = 15,171,352.68
  5. Step 5: Solve for x
    x = 15,171,352.68/3,891.07
  6. Step 6: Final answer
    x = 3,899.02

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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.