Home / 3,189.36-4,785.93-1,728.48

Finding the Fourth Proportional to 3,189.36, 4,785.93 and 1,728.48

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Solution

The fourth proportional to 3,189.36, 4,785.93 and 1,728.48 is: 2,593.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.36 : 4,785.93 = 1,728.48 : x
  2. Step 2: Convert to fraction form
    3,189.36/4,785.93 = 1,728.48/x
  3. Step 3: Cross multiply
    3,189.36x = 4,785.93 × 1,728.48
  4. Step 4: Simplify right side
    3,189.36x = 8,272,384.29
  5. Step 5: Solve for x
    x = 8,272,384.29/3,189.36
  6. Step 6: Final answer
    x = 2,593.74

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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.