Home / 7,778.28-10,734.08-4,241.55

Finding the Fourth Proportional to 7,778.28, 10,734.08 and 4,241.55

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Solution

The fourth proportional to 7,778.28, 10,734.08 and 4,241.55 is: 5,853.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.28 : 10,734.08 = 4,241.55 : x
  2. Step 2: Convert to fraction form
    7,778.28/10,734.08 = 4,241.55/x
  3. Step 3: Cross multiply
    7,778.28x = 10,734.08 × 4,241.55
  4. Step 4: Simplify right side
    7,778.28x = 45,529,115.82
  5. Step 5: Solve for x
    x = 45,529,115.82/7,778.28
  6. Step 6: Final answer
    x = 5,853.37

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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.