Home / 2,660.13-3,992.50-2,653.98

Finding the Fourth Proportional to 2,660.13, 3,992.50 and 2,653.98

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Solution

The fourth proportional to 2,660.13, 3,992.50 and 2,653.98 is: 3,983.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.13 : 3,992.50 = 2,653.98 : x
  2. Step 2: Convert to fraction form
    2,660.13/3,992.50 = 2,653.98/x
  3. Step 3: Cross multiply
    2,660.13x = 3,992.50 × 2,653.98
  4. Step 4: Simplify right side
    2,660.13x = 10,595,981.92
  5. Step 5: Solve for x
    x = 10,595,981.92/2,660.13
  6. Step 6: Final answer
    x = 3,983.26

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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.