Home / 3,890.19-5,369.30-2,296.25

Finding the Fourth Proportional to 3,890.19, 5,369.30 and 2,296.25

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Solution

The fourth proportional to 3,890.19, 5,369.30 and 2,296.25 is: 3,169.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.19 : 5,369.30 = 2,296.25 : x
  2. Step 2: Convert to fraction form
    3,890.19/5,369.30 = 2,296.25/x
  3. Step 3: Cross multiply
    3,890.19x = 5,369.30 × 2,296.25
  4. Step 4: Simplify right side
    3,890.19x = 12,329,216.80
  5. Step 5: Solve for x
    x = 12,329,216.80/3,890.19
  6. Step 6: Final answer
    x = 3,169.31

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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.