Home / 2,943.28-4,416.54-1,213.12

Finding the Fourth Proportional to 2,943.28, 4,416.54 and 1,213.12

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Solution

The fourth proportional to 2,943.28, 4,416.54 and 1,213.12 is: 1,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.28 : 4,416.54 = 1,213.12 : x
  2. Step 2: Convert to fraction form
    2,943.28/4,416.54 = 1,213.12/x
  3. Step 3: Cross multiply
    2,943.28x = 4,416.54 × 1,213.12
  4. Step 4: Simplify right side
    2,943.28x = 5,357,793.00
  5. Step 5: Solve for x
    x = 5,357,793.00/2,943.28
  6. Step 6: Final answer
    x = 1,820.35

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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.