Home / 2,762.72-3,811.25-1,583.12

Finding the Fourth Proportional to 2,762.72, 3,811.25 and 1,583.12

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Solution

The fourth proportional to 2,762.72, 3,811.25 and 1,583.12 is: 2,183.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.72 : 3,811.25 = 1,583.12 : x
  2. Step 2: Convert to fraction form
    2,762.72/3,811.25 = 1,583.12/x
  3. Step 3: Cross multiply
    2,762.72x = 3,811.25 × 1,583.12
  4. Step 4: Simplify right side
    2,762.72x = 6,033,658.18
  5. Step 5: Solve for x
    x = 6,033,658.18/2,762.72
  6. Step 6: Final answer
    x = 2,183.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.