Home / 5,142.54-7,096.80-3,019.60

Finding the Fourth Proportional to 5,142.54, 7,096.80 and 3,019.60

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Solution

The fourth proportional to 5,142.54, 7,096.80 and 3,019.60 is: 4,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.54 : 7,096.80 = 3,019.60 : x
  2. Step 2: Convert to fraction form
    5,142.54/7,096.80 = 3,019.60/x
  3. Step 3: Cross multiply
    5,142.54x = 7,096.80 × 3,019.60
  4. Step 4: Simplify right side
    5,142.54x = 21,429,497.28
  5. Step 5: Solve for x
    x = 21,429,497.28/5,142.54
  6. Step 6: Final answer
    x = 4,167.10

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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.