Home / 7,581.16-11,371.36-2,900.81

Finding the Fourth Proportional to 7,581.16, 11,371.36 and 2,900.81

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Solution

The fourth proportional to 7,581.16, 11,371.36 and 2,900.81 is: 4,351.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.16 : 11,371.36 = 2,900.81 : x
  2. Step 2: Convert to fraction form
    7,581.16/11,371.36 = 2,900.81/x
  3. Step 3: Cross multiply
    7,581.16x = 11,371.36 × 2,900.81
  4. Step 4: Simplify right side
    7,581.16x = 32,986,171.22
  5. Step 5: Solve for x
    x = 32,986,171.22/7,581.16
  6. Step 6: Final answer
    x = 4,351.07

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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.