Home / 7,661.24-11,491.90-2,114.88

Finding the Fourth Proportional to 7,661.24, 11,491.90 and 2,114.88

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Solution

The fourth proportional to 7,661.24, 11,491.90 and 2,114.88 is: 3,172.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.24 : 11,491.90 = 2,114.88 : x
  2. Step 2: Convert to fraction form
    7,661.24/11,491.90 = 2,114.88/x
  3. Step 3: Cross multiply
    7,661.24x = 11,491.90 × 2,114.88
  4. Step 4: Simplify right side
    7,661.24x = 24,303,989.47
  5. Step 5: Solve for x
    x = 24,303,989.47/7,661.24
  6. Step 6: Final answer
    x = 3,172.33

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1.5x scale

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.