Home / 4,719.55-7,079.31-2,119.45

Finding the Fourth Proportional to 4,719.55, 7,079.31 and 2,119.45

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Solution

The fourth proportional to 4,719.55, 7,079.31 and 2,119.45 is: 3,179.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.55 : 7,079.31 = 2,119.45 : x
  2. Step 2: Convert to fraction form
    4,719.55/7,079.31 = 2,119.45/x
  3. Step 3: Cross multiply
    4,719.55x = 7,079.31 × 2,119.45
  4. Step 4: Simplify right side
    4,719.55x = 15,004,208.18
  5. Step 5: Solve for x
    x = 15,004,208.18/4,719.55
  6. Step 6: Final answer
    x = 3,179.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.