Home / 5,108.44-7,049.55-2,870.32

Finding the Fourth Proportional to 5,108.44, 7,049.55 and 2,870.32

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Solution

The fourth proportional to 5,108.44, 7,049.55 and 2,870.32 is: 3,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.44 : 7,049.55 = 2,870.32 : x
  2. Step 2: Convert to fraction form
    5,108.44/7,049.55 = 2,870.32/x
  3. Step 3: Cross multiply
    5,108.44x = 7,049.55 × 2,870.32
  4. Step 4: Simplify right side
    5,108.44x = 20,234,464.36
  5. Step 5: Solve for x
    x = 20,234,464.36/5,108.44
  6. Step 6: Final answer
    x = 3,960.99

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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.