Home / 5,410.57-8,115.45-1,515.28

Finding the Fourth Proportional to 5,410.57, 8,115.45 and 1,515.28

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Solution

The fourth proportional to 5,410.57, 8,115.45 and 1,515.28 is: 2,272.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,410.57 : 8,115.45 = 1,515.28 : x
  2. Step 2: Convert to fraction form
    5,410.57/8,115.45 = 1,515.28/x
  3. Step 3: Cross multiply
    5,410.57x = 8,115.45 × 1,515.28
  4. Step 4: Simplify right side
    5,410.57x = 12,297,179.08
  5. Step 5: Solve for x
    x = 12,297,179.08/5,410.57
  6. Step 6: Final answer
    x = 2,272.81

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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.