Home / 3,840.20-5,771.13-2,280.50

Finding the Fourth Proportional to 3,840.20, 5,771.13 and 2,280.50

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Solution

The fourth proportional to 3,840.20, 5,771.13 and 2,280.50 is: 3,427.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.20 : 5,771.13 = 2,280.50 : x
  2. Step 2: Convert to fraction form
    3,840.20/5,771.13 = 2,280.50/x
  3. Step 3: Cross multiply
    3,840.20x = 5,771.13 × 2,280.50
  4. Step 4: Simplify right side
    3,840.20x = 13,161,033.11
  5. Step 5: Solve for x
    x = 13,161,033.11/3,840.20
  6. Step 6: Final answer
    x = 3,427.18

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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.