Home / 5,164.88-7,127.53-2,807.02

Finding the Fourth Proportional to 5,164.88, 7,127.53 and 2,807.02

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Solution

The fourth proportional to 5,164.88, 7,127.53 and 2,807.02 is: 3,873.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.88 : 7,127.53 = 2,807.02 : x
  2. Step 2: Convert to fraction form
    5,164.88/7,127.53 = 2,807.02/x
  3. Step 3: Cross multiply
    5,164.88x = 7,127.53 × 2,807.02
  4. Step 4: Simplify right side
    5,164.88x = 20,007,121.15
  5. Step 5: Solve for x
    x = 20,007,121.15/5,164.88
  6. Step 6: Final answer
    x = 3,873.69

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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.