Home / 6,855.20-10,280.74-2,175.02

Finding the Fourth Proportional to 6,855.20, 10,280.74 and 2,175.02

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Solution

The fourth proportional to 6,855.20, 10,280.74 and 2,175.02 is: 3,261.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,855.20 : 10,280.74 = 2,175.02 : x
  2. Step 2: Convert to fraction form
    6,855.20/10,280.74 = 2,175.02/x
  3. Step 3: Cross multiply
    6,855.20x = 10,280.74 × 2,175.02
  4. Step 4: Simplify right side
    6,855.20x = 22,360,800.90
  5. Step 5: Solve for x
    x = 22,360,800.90/6,855.20
  6. Step 6: Final answer
    x = 3,261.87

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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.