Home / 6,315.44-8,715.18-3,662.78

Finding the Fourth Proportional to 6,315.44, 8,715.18 and 3,662.78

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Solution

The fourth proportional to 6,315.44, 8,715.18 and 3,662.78 is: 5,054.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.44 : 8,715.18 = 3,662.78 : x
  2. Step 2: Convert to fraction form
    6,315.44/8,715.18 = 3,662.78/x
  3. Step 3: Cross multiply
    6,315.44x = 8,715.18 × 3,662.78
  4. Step 4: Simplify right side
    6,315.44x = 31,921,787.00
  5. Step 5: Solve for x
    x = 31,921,787.00/6,315.44
  6. Step 6: Final answer
    x = 5,054.56

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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.