Home / 3,890.25-5,365.31-2,317.23

Finding the Fourth Proportional to 3,890.25, 5,365.31 and 2,317.23

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Solution

The fourth proportional to 3,890.25, 5,365.31 and 2,317.23 is: 3,195.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.25 : 5,365.31 = 2,317.23 : x
  2. Step 2: Convert to fraction form
    3,890.25/5,365.31 = 2,317.23/x
  3. Step 3: Cross multiply
    3,890.25x = 5,365.31 × 2,317.23
  4. Step 4: Simplify right side
    3,890.25x = 12,432,645.71
  5. Step 5: Solve for x
    x = 12,432,645.71/3,890.25
  6. Step 6: Final answer
    x = 3,195.85

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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.