Home / 7,660.54-11,485.40-2,976.65

Finding the Fourth Proportional to 7,660.54, 11,485.40 and 2,976.65

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Solution

The fourth proportional to 7,660.54, 11,485.40 and 2,976.65 is: 4,462.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.54 : 11,485.40 = 2,976.65 : x
  2. Step 2: Convert to fraction form
    7,660.54/11,485.40 = 2,976.65/x
  3. Step 3: Cross multiply
    7,660.54x = 11,485.40 × 2,976.65
  4. Step 4: Simplify right side
    7,660.54x = 34,187,965.92
  5. Step 5: Solve for x
    x = 34,187,965.92/7,660.54
  6. Step 6: Final answer
    x = 4,462.87

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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.