Home / 7,620.24-11,431.43-2,355.68

Finding the Fourth Proportional to 7,620.24, 11,431.43 and 2,355.68

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Solution

The fourth proportional to 7,620.24, 11,431.43 and 2,355.68 is: 3,533.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.24 : 11,431.43 = 2,355.68 : x
  2. Step 2: Convert to fraction form
    7,620.24/11,431.43 = 2,355.68/x
  3. Step 3: Cross multiply
    7,620.24x = 11,431.43 × 2,355.68
  4. Step 4: Simplify right side
    7,620.24x = 26,928,816.66
  5. Step 5: Solve for x
    x = 26,928,816.66/7,620.24
  6. Step 6: Final answer
    x = 3,533.85

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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.