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Finding the Fourth Proportional to 6,313.68, 8,712.36 and 3,519

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Solution

The fourth proportional to 6,313.68, 8,712.36 and 3,519 is: 4,855.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,313.68 : 8,712.36 = 3,519 : x
  2. Step 2: Convert to fraction form
    6,313.68/8,712.36 = 3,519/x
  3. Step 3: Cross multiply
    6,313.68x = 8,712.36 × 3,519
  4. Step 4: Simplify right side
    6,313.68x = 30,658,794.84
  5. Step 5: Solve for x
    x = 30,658,794.84/6,313.68
  6. Step 6: Final answer
    x = 4,855.93

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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.