Home / 6,555.65-9,830.44-2,112.51

Finding the Fourth Proportional to 6,555.65, 9,830.44 and 2,112.51

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Solution

The fourth proportional to 6,555.65, 9,830.44 and 2,112.51 is: 3,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.65 : 9,830.44 = 2,112.51 : x
  2. Step 2: Convert to fraction form
    6,555.65/9,830.44 = 2,112.51/x
  3. Step 3: Cross multiply
    6,555.65x = 9,830.44 × 2,112.51
  4. Step 4: Simplify right side
    6,555.65x = 20,766,942.31
  5. Step 5: Solve for x
    x = 20,766,942.31/6,555.65
  6. Step 6: Final answer
    x = 3,167.80

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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.