Home / 2,723.20-3,758.74-2,280.40

Finding the Fourth Proportional to 2,723.20, 3,758.74 and 2,280.40

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Solution

The fourth proportional to 2,723.20, 3,758.74 and 2,280.40 is: 3,147.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,723.20 : 3,758.74 = 2,280.40 : x
  2. Step 2: Convert to fraction form
    2,723.20/3,758.74 = 2,280.40/x
  3. Step 3: Cross multiply
    2,723.20x = 3,758.74 × 2,280.40
  4. Step 4: Simplify right side
    2,723.20x = 8,571,430.70
  5. Step 5: Solve for x
    x = 8,571,430.70/2,723.20
  6. Step 6: Final answer
    x = 3,147.56

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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.