Home / 5,812.14-8,020.80-3,159.55

Finding the Fourth Proportional to 5,812.14, 8,020.80 and 3,159.55

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Solution

The fourth proportional to 5,812.14, 8,020.80 and 3,159.55 is: 4,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.14 : 8,020.80 = 3,159.55 : x
  2. Step 2: Convert to fraction form
    5,812.14/8,020.80 = 3,159.55/x
  3. Step 3: Cross multiply
    5,812.14x = 8,020.80 × 3,159.55
  4. Step 4: Simplify right side
    5,812.14x = 25,342,078.54
  5. Step 5: Solve for x
    x = 25,342,078.54/5,812.14
  6. Step 6: Final answer
    x = 4,360.20

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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.