Home / 4,939.89-7,412.75-1,822.09

Finding the Fourth Proportional to 4,939.89, 7,412.75 and 1,822.09

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Solution

The fourth proportional to 4,939.89, 7,412.75 and 1,822.09 is: 2,734.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.89 : 7,412.75 = 1,822.09 : x
  2. Step 2: Convert to fraction form
    4,939.89/7,412.75 = 1,822.09/x
  3. Step 3: Cross multiply
    4,939.89x = 7,412.75 × 1,822.09
  4. Step 4: Simplify right side
    4,939.89x = 13,506,697.65
  5. Step 5: Solve for x
    x = 13,506,697.65/4,939.89
  6. Step 6: Final answer
    x = 2,734.21

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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.