Home / 7,491.79-11,237.69-2,561.47

Finding the Fourth Proportional to 7,491.79, 11,237.69 and 2,561.47

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Solution

The fourth proportional to 7,491.79, 11,237.69 and 2,561.47 is: 3,842.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.79 : 11,237.69 = 2,561.47 : x
  2. Step 2: Convert to fraction form
    7,491.79/11,237.69 = 2,561.47/x
  3. Step 3: Cross multiply
    7,491.79x = 11,237.69 × 2,561.47
  4. Step 4: Simplify right side
    7,491.79x = 28,784,964.90
  5. Step 5: Solve for x
    x = 28,784,964.90/7,491.79
  6. Step 6: Final answer
    x = 3,842.20

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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.