Home / 3,792.12-5,233.32-2,859

Finding the Fourth Proportional to 3,792.12, 5,233.32 and 2,859

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Solution

The fourth proportional to 3,792.12, 5,233.32 and 2,859 is: 3,945.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792.12 : 5,233.32 = 2,859 : x
  2. Step 2: Convert to fraction form
    3,792.12/5,233.32 = 2,859/x
  3. Step 3: Cross multiply
    3,792.12x = 5,233.32 × 2,859
  4. Step 4: Simplify right side
    3,792.12x = 14,962,061.88
  5. Step 5: Solve for x
    x = 14,962,061.88/3,792.12
  6. Step 6: Final answer
    x = 3,945.57

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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.