Home / 4,722.30-7,083.30-1,212.16

Finding the Fourth Proportional to 4,722.30, 7,083.30 and 1,212.16

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Solution

The fourth proportional to 4,722.30, 7,083.30 and 1,212.16 is: 1,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722.30 : 7,083.30 = 1,212.16 : x
  2. Step 2: Convert to fraction form
    4,722.30/7,083.30 = 1,212.16/x
  3. Step 3: Cross multiply
    4,722.30x = 7,083.30 × 1,212.16
  4. Step 4: Simplify right side
    4,722.30x = 8,586,110.64
  5. Step 5: Solve for x
    x = 8,586,110.64/4,722.30
  6. Step 6: Final answer
    x = 1,818.21

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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.