Home / 3,190.42-4,784.90-1,216.28

Finding the Fourth Proportional to 3,190.42, 4,784.90 and 1,216.28

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Solution

The fourth proportional to 3,190.42, 4,784.90 and 1,216.28 is: 1,824.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.42 : 4,784.90 = 1,216.28 : x
  2. Step 2: Convert to fraction form
    3,190.42/4,784.90 = 1,216.28/x
  3. Step 3: Cross multiply
    3,190.42x = 4,784.90 × 1,216.28
  4. Step 4: Simplify right side
    3,190.42x = 5,819,748.17
  5. Step 5: Solve for x
    x = 5,819,748.17/3,190.42
  6. Step 6: Final answer
    x = 1,824.13

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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.