Home / 7,239.69-9,991.38-4,096.48

Finding the Fourth Proportional to 7,239.69, 9,991.38 and 4,096.48

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Solution

The fourth proportional to 7,239.69, 9,991.38 and 4,096.48 is: 5,653.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.69 : 9,991.38 = 4,096.48 : x
  2. Step 2: Convert to fraction form
    7,239.69/9,991.38 = 4,096.48/x
  3. Step 3: Cross multiply
    7,239.69x = 9,991.38 × 4,096.48
  4. Step 4: Simplify right side
    7,239.69x = 40,929,488.34
  5. Step 5: Solve for x
    x = 40,929,488.34/7,239.69
  6. Step 6: Final answer
    x = 5,653.49

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1.5x scale

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.