Home / 4,212.70-6,317.84-1,615.04

Finding the Fourth Proportional to 4,212.70, 6,317.84 and 1,615.04

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Solution

The fourth proportional to 4,212.70, 6,317.84 and 1,615.04 is: 2,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.70 : 6,317.84 = 1,615.04 : x
  2. Step 2: Convert to fraction form
    4,212.70/6,317.84 = 1,615.04/x
  3. Step 3: Cross multiply
    4,212.70x = 6,317.84 × 1,615.04
  4. Step 4: Simplify right side
    4,212.70x = 10,203,564.31
  5. Step 5: Solve for x
    x = 10,203,564.31/4,212.70
  6. Step 6: Final answer
    x = 2,422.10

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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.