Home / 2,056.20-3,084.84-757.68

Finding the Fourth Proportional to 2,056.20, 3,084.84 and 757.68

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Solution

The fourth proportional to 2,056.20, 3,084.84 and 757.68 is: 1,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,056.20 : 3,084.84 = 757.68 : x
  2. Step 2: Convert to fraction form
    2,056.20/3,084.84 = 757.68/x
  3. Step 3: Cross multiply
    2,056.20x = 3,084.84 × 757.68
  4. Step 4: Simplify right side
    2,056.20x = 2,337,321.57
  5. Step 5: Solve for x
    x = 2,337,321.57/2,056.20
  6. Step 6: Final answer
    x = 1,136.72

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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.