Home / 5,106.12-7,660.08-2,640.27

Finding the Fourth Proportional to 5,106.12, 7,660.08 and 2,640.27

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Solution

The fourth proportional to 5,106.12, 7,660.08 and 2,640.27 is: 3,960.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.12 : 7,660.08 = 2,640.27 : x
  2. Step 2: Convert to fraction form
    5,106.12/7,660.08 = 2,640.27/x
  3. Step 3: Cross multiply
    5,106.12x = 7,660.08 × 2,640.27
  4. Step 4: Simplify right side
    5,106.12x = 20,224,679.42
  5. Step 5: Solve for x
    x = 20,224,679.42/5,106.12
  6. Step 6: Final answer
    x = 3,960.87

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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.