Home / 4,288.12-6,442.94-2,728.80

Finding the Fourth Proportional to 4,288.12, 6,442.94 and 2,728.80

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Solution

The fourth proportional to 4,288.12, 6,442.94 and 2,728.80 is: 4,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.12 : 6,442.94 = 2,728.80 : x
  2. Step 2: Convert to fraction form
    4,288.12/6,442.94 = 2,728.80/x
  3. Step 3: Cross multiply
    4,288.12x = 6,442.94 × 2,728.80
  4. Step 4: Simplify right side
    4,288.12x = 17,581,501.49
  5. Step 5: Solve for x
    x = 17,581,501.49/4,288.12
  6. Step 6: Final answer
    x = 4,100.05

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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.