Home / 4,128.12-6,197.04-1,664.71

Finding the Fourth Proportional to 4,128.12, 6,197.04 and 1,664.71

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Solution

The fourth proportional to 4,128.12, 6,197.04 and 1,664.71 is: 2,499.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.12 : 6,197.04 = 1,664.71 : x
  2. Step 2: Convert to fraction form
    4,128.12/6,197.04 = 1,664.71/x
  3. Step 3: Cross multiply
    4,128.12x = 6,197.04 × 1,664.71
  4. Step 4: Simplify right side
    4,128.12x = 10,316,258.97
  5. Step 5: Solve for x
    x = 10,316,258.97/4,128.12
  6. Step 6: Final answer
    x = 2,499.02

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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.