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Finding the Fourth Proportional to 6,313.12, 8,712.02 and 3,660.46

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Solution

The fourth proportional to 6,313.12, 8,712.02 and 3,660.46 is: 5,051.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,313.12 : 8,712.02 = 3,660.46 : x
  2. Step 2: Convert to fraction form
    6,313.12/8,712.02 = 3,660.46/x
  3. Step 3: Cross multiply
    6,313.12x = 8,712.02 × 3,660.46
  4. Step 4: Simplify right side
    6,313.12x = 31,890,000.73
  5. Step 5: Solve for x
    x = 31,890,000.73/6,313.12
  6. Step 6: Final answer
    x = 5,051.39

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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.