Home / 5,792.80-7,993.96-3,140.16

Finding the Fourth Proportional to 5,792.80, 7,993.96 and 3,140.16

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Solution

The fourth proportional to 5,792.80, 7,993.96 and 3,140.16 is: 4,333.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,792.80 : 7,993.96 = 3,140.16 : x
  2. Step 2: Convert to fraction form
    5,792.80/7,993.96 = 3,140.16/x
  3. Step 3: Cross multiply
    5,792.80x = 7,993.96 × 3,140.16
  4. Step 4: Simplify right side
    5,792.80x = 25,102,313.43
  5. Step 5: Solve for x
    x = 25,102,313.43/5,792.80
  6. Step 6: Final answer
    x = 4,333.36

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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.