Home / 5,931.92-8,896.40-2,811.12

Finding the Fourth Proportional to 5,931.92, 8,896.40 and 2,811.12

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Solution

The fourth proportional to 5,931.92, 8,896.40 and 2,811.12 is: 4,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,931.92 : 8,896.40 = 2,811.12 : x
  2. Step 2: Convert to fraction form
    5,931.92/8,896.40 = 2,811.12/x
  3. Step 3: Cross multiply
    5,931.92x = 8,896.40 × 2,811.12
  4. Step 4: Simplify right side
    5,931.92x = 25,008,847.97
  5. Step 5: Solve for x
    x = 25,008,847.97/5,931.92
  6. Step 6: Final answer
    x = 4,215.98

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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.