Home / 3,018.64-4,534.89-2,143.30

Finding the Fourth Proportional to 3,018.64, 4,534.89 and 2,143.30

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Solution

The fourth proportional to 3,018.64, 4,534.89 and 2,143.30 is: 3,219.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.64 : 4,534.89 = 2,143.30 : x
  2. Step 2: Convert to fraction form
    3,018.64/4,534.89 = 2,143.30/x
  3. Step 3: Cross multiply
    3,018.64x = 4,534.89 × 2,143.30
  4. Step 4: Simplify right side
    3,018.64x = 9,719,629.74
  5. Step 5: Solve for x
    x = 9,719,629.74/3,018.64
  6. Step 6: Final answer
    x = 3,219.87

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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.