Home / 3,395.21-5,089.77-2,159.15

Finding the Fourth Proportional to 3,395.21, 5,089.77 and 2,159.15

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Solution

The fourth proportional to 3,395.21, 5,089.77 and 2,159.15 is: 3,236.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.21 : 5,089.77 = 2,159.15 : x
  2. Step 2: Convert to fraction form
    3,395.21/5,089.77 = 2,159.15/x
  3. Step 3: Cross multiply
    3,395.21x = 5,089.77 × 2,159.15
  4. Step 4: Simplify right side
    3,395.21x = 10,989,551.45
  5. Step 5: Solve for x
    x = 10,989,551.45/3,395.21
  6. Step 6: Final answer
    x = 3,236.79

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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.