Home / 5,168.71-7,132.80-2,810.89

Finding the Fourth Proportional to 5,168.71, 7,132.80 and 2,810.89

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Solution

The fourth proportional to 5,168.71, 7,132.80 and 2,810.89 is: 3,879.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.71 : 7,132.80 = 2,810.89 : x
  2. Step 2: Convert to fraction form
    5,168.71/7,132.80 = 2,810.89/x
  3. Step 3: Cross multiply
    5,168.71x = 7,132.80 × 2,810.89
  4. Step 4: Simplify right side
    5,168.71x = 20,049,516.19
  5. Step 5: Solve for x
    x = 20,049,516.19/5,168.71
  6. Step 6: Final answer
    x = 3,879.02

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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.