Home / 4,212.90-6,318.53-1,579.89

Finding the Fourth Proportional to 4,212.90, 6,318.53 and 1,579.89

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Solution

The fourth proportional to 4,212.90, 6,318.53 and 1,579.89 is: 2,369.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.90 : 6,318.53 = 1,579.89 : x
  2. Step 2: Convert to fraction form
    4,212.90/6,318.53 = 1,579.89/x
  3. Step 3: Cross multiply
    4,212.90x = 6,318.53 × 1,579.89
  4. Step 4: Simplify right side
    4,212.90x = 9,982,574.46
  5. Step 5: Solve for x
    x = 9,982,574.46/4,212.90
  6. Step 6: Final answer
    x = 2,369.53

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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.