Home / 6,742.88-10,115.68-2,847.28

Finding the Fourth Proportional to 6,742.88, 10,115.68 and 2,847.28

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Solution

The fourth proportional to 6,742.88, 10,115.68 and 2,847.28 is: 4,271.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,742.88 : 10,115.68 = 2,847.28 : x
  2. Step 2: Convert to fraction form
    6,742.88/10,115.68 = 2,847.28/x
  3. Step 3: Cross multiply
    6,742.88x = 10,115.68 × 2,847.28
  4. Step 4: Simplify right side
    6,742.88x = 28,802,173.35
  5. Step 5: Solve for x
    x = 28,802,173.35/6,742.88
  6. Step 6: Final answer
    x = 4,271.49

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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.