Home / 3,759.72-5,193.38-2,886.32

Finding the Fourth Proportional to 3,759.72, 5,193.38 and 2,886.32

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Solution

The fourth proportional to 3,759.72, 5,193.38 and 2,886.32 is: 3,986.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.72 : 5,193.38 = 2,886.32 : x
  2. Step 2: Convert to fraction form
    3,759.72/5,193.38 = 2,886.32/x
  3. Step 3: Cross multiply
    3,759.72x = 5,193.38 × 2,886.32
  4. Step 4: Simplify right side
    3,759.72x = 14,989,756.56
  5. Step 5: Solve for x
    x = 14,989,756.56/3,759.72
  6. Step 6: Final answer
    x = 3,986.93

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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.