Home / 7,760.21-11,640.33-2,829.84

Finding the Fourth Proportional to 7,760.21, 11,640.33 and 2,829.84

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Solution

The fourth proportional to 7,760.21, 11,640.33 and 2,829.84 is: 4,244.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,760.21 : 11,640.33 = 2,829.84 : x
  2. Step 2: Convert to fraction form
    7,760.21/11,640.33 = 2,829.84/x
  3. Step 3: Cross multiply
    7,760.21x = 11,640.33 × 2,829.84
  4. Step 4: Simplify right side
    7,760.21x = 32,940,271.45
  5. Step 5: Solve for x
    x = 32,940,271.45/7,760.21
  6. Step 6: Final answer
    x = 4,244.77

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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.