Home / 5,115.54-7,059.21-2,846.99

Finding the Fourth Proportional to 5,115.54, 7,059.21 and 2,846.99

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Solution

The fourth proportional to 5,115.54, 7,059.21 and 2,846.99 is: 3,928.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.54 : 7,059.21 = 2,846.99 : x
  2. Step 2: Convert to fraction form
    5,115.54/7,059.21 = 2,846.99/x
  3. Step 3: Cross multiply
    5,115.54x = 7,059.21 × 2,846.99
  4. Step 4: Simplify right side
    5,115.54x = 20,097,486.04
  5. Step 5: Solve for x
    x = 20,097,486.04/5,115.54
  6. Step 6: Final answer
    x = 3,928.72

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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.