Home / 3,925.56-5,418.54-2,687.16

Finding the Fourth Proportional to 3,925.56, 5,418.54 and 2,687.16

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Solution

The fourth proportional to 3,925.56, 5,418.54 and 2,687.16 is: 3,709.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.56 : 5,418.54 = 2,687.16 : x
  2. Step 2: Convert to fraction form
    3,925.56/5,418.54 = 2,687.16/x
  3. Step 3: Cross multiply
    3,925.56x = 5,418.54 × 2,687.16
  4. Step 4: Simplify right side
    3,925.56x = 14,560,483.95
  5. Step 5: Solve for x
    x = 14,560,483.95/3,925.56
  6. Step 6: Final answer
    x = 3,709.15

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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.