Home / 4,234.40-6,351.84-1,313.12

Finding the Fourth Proportional to 4,234.40, 6,351.84 and 1,313.12

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Solution

The fourth proportional to 4,234.40, 6,351.84 and 1,313.12 is: 1,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,234.40 : 6,351.84 = 1,313.12 : x
  2. Step 2: Convert to fraction form
    4,234.40/6,351.84 = 1,313.12/x
  3. Step 3: Cross multiply
    4,234.40x = 6,351.84 × 1,313.12
  4. Step 4: Simplify right side
    4,234.40x = 8,340,728.14
  5. Step 5: Solve for x
    x = 8,340,728.14/4,234.40
  6. Step 6: Final answer
    x = 1,969.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.