Home / 3,120.16-4,305.70-1,792.96

Finding the Fourth Proportional to 3,120.16, 4,305.70 and 1,792.96

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Solution

The fourth proportional to 3,120.16, 4,305.70 and 1,792.96 is: 2,474.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.16 : 4,305.70 = 1,792.96 : x
  2. Step 2: Convert to fraction form
    3,120.16/4,305.70 = 1,792.96/x
  3. Step 3: Cross multiply
    3,120.16x = 4,305.70 × 1,792.96
  4. Step 4: Simplify right side
    3,120.16x = 7,719,947.87
  5. Step 5: Solve for x
    x = 7,719,947.87/3,120.16
  6. Step 6: Final answer
    x = 2,474.22

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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.