Home / 3,189.89-4,402.28-1,792.64

Finding the Fourth Proportional to 3,189.89, 4,402.28 and 1,792.64

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Solution

The fourth proportional to 3,189.89, 4,402.28 and 1,792.64 is: 2,473.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.89 : 4,402.28 = 1,792.64 : x
  2. Step 2: Convert to fraction form
    3,189.89/4,402.28 = 1,792.64/x
  3. Step 3: Cross multiply
    3,189.89x = 4,402.28 × 1,792.64
  4. Step 4: Simplify right side
    3,189.89x = 7,891,703.22
  5. Step 5: Solve for x
    x = 7,891,703.22/3,189.89
  6. Step 6: Final answer
    x = 2,473.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.