Home / 6,839.24-10,255.35-3,138.28

Finding the Fourth Proportional to 6,839.24, 10,255.35 and 3,138.28

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Solution

The fourth proportional to 6,839.24, 10,255.35 and 3,138.28 is: 4,705.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,839.24 : 10,255.35 = 3,138.28 : x
  2. Step 2: Convert to fraction form
    6,839.24/10,255.35 = 3,138.28/x
  3. Step 3: Cross multiply
    6,839.24x = 10,255.35 × 3,138.28
  4. Step 4: Simplify right side
    6,839.24x = 32,184,159.80
  5. Step 5: Solve for x
    x = 32,184,159.80/6,839.24
  6. Step 6: Final answer
    x = 4,705.81

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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.