Home / 2,814.72-4,218.84-1,839.12

Finding the Fourth Proportional to 2,814.72, 4,218.84 and 1,839.12

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Solution

The fourth proportional to 2,814.72, 4,218.84 and 1,839.12 is: 2,756.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.72 : 4,218.84 = 1,839.12 : x
  2. Step 2: Convert to fraction form
    2,814.72/4,218.84 = 1,839.12/x
  3. Step 3: Cross multiply
    2,814.72x = 4,218.84 × 1,839.12
  4. Step 4: Simplify right side
    2,814.72x = 7,758,953.02
  5. Step 5: Solve for x
    x = 7,758,953.02/2,814.72
  6. Step 6: Final answer
    x = 2,756.56

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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.