Home / 7,231.74-9,980.31-4,045.33

Finding the Fourth Proportional to 7,231.74, 9,980.31 and 4,045.33

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Solution

The fourth proportional to 7,231.74, 9,980.31 and 4,045.33 is: 5,582.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231.74 : 9,980.31 = 4,045.33 : x
  2. Step 2: Convert to fraction form
    7,231.74/9,980.31 = 4,045.33/x
  3. Step 3: Cross multiply
    7,231.74x = 9,980.31 × 4,045.33
  4. Step 4: Simplify right side
    7,231.74x = 40,373,584.83
  5. Step 5: Solve for x
    x = 40,373,584.83/7,231.74
  6. Step 6: Final answer
    x = 5,582.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.