Home / 2,531.40-3,791.08-2,166.45

Finding the Fourth Proportional to 2,531.40, 3,791.08 and 2,166.45

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Solution

The fourth proportional to 2,531.40, 3,791.08 and 2,166.45 is: 3,244.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.40 : 3,791.08 = 2,166.45 : x
  2. Step 2: Convert to fraction form
    2,531.40/3,791.08 = 2,166.45/x
  3. Step 3: Cross multiply
    2,531.40x = 3,791.08 × 2,166.45
  4. Step 4: Simplify right side
    2,531.40x = 8,213,185.27
  5. Step 5: Solve for x
    x = 8,213,185.27/2,531.40
  6. Step 6: Final answer
    x = 3,244.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.