Home / 5,812.16-8,020.32-3,455.36

Finding the Fourth Proportional to 5,812.16, 8,020.32 and 3,455.36

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Solution

The fourth proportional to 5,812.16, 8,020.32 and 3,455.36 is: 4,768.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.16 : 8,020.32 = 3,455.36 : x
  2. Step 2: Convert to fraction form
    5,812.16/8,020.32 = 3,455.36/x
  3. Step 3: Cross multiply
    5,812.16x = 8,020.32 × 3,455.36
  4. Step 4: Simplify right side
    5,812.16x = 27,713,092.92
  5. Step 5: Solve for x
    x = 27,713,092.92/5,812.16
  6. Step 6: Final answer
    x = 4,768.12

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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.