Home / 5,639.68-7,777.92-3,401.06

Finding the Fourth Proportional to 5,639.68, 7,777.92 and 3,401.06

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Solution

The fourth proportional to 5,639.68, 7,777.92 and 3,401.06 is: 4,690.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.68 : 7,777.92 = 3,401.06 : x
  2. Step 2: Convert to fraction form
    5,639.68/7,777.92 = 3,401.06/x
  3. Step 3: Cross multiply
    5,639.68x = 7,777.92 × 3,401.06
  4. Step 4: Simplify right side
    5,639.68x = 26,453,212.09
  5. Step 5: Solve for x
    x = 26,453,212.09/5,639.68
  6. Step 6: Final answer
    x = 4,690.56

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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.