Home / 5,512.16-8,268.78-1,812.88

Finding the Fourth Proportional to 5,512.16, 8,268.78 and 1,812.88

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Solution

The fourth proportional to 5,512.16, 8,268.78 and 1,812.88 is: 2,719.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,512.16 : 8,268.78 = 1,812.88 : x
  2. Step 2: Convert to fraction form
    5,512.16/8,268.78 = 1,812.88/x
  3. Step 3: Cross multiply
    5,512.16x = 8,268.78 × 1,812.88
  4. Step 4: Simplify right side
    5,512.16x = 14,990,305.89
  5. Step 5: Solve for x
    x = 14,990,305.89/5,512.16
  6. Step 6: Final answer
    x = 2,719.50

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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.