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Finding the Fourth Proportional to 6,313.82, 9,470.10 and 1,931.32

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Solution

The fourth proportional to 6,313.82, 9,470.10 and 1,931.32 is: 2,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,313.82 : 9,470.10 = 1,931.32 : x
  2. Step 2: Convert to fraction form
    6,313.82/9,470.10 = 1,931.32/x
  3. Step 3: Cross multiply
    6,313.82x = 9,470.10 × 1,931.32
  4. Step 4: Simplify right side
    6,313.82x = 18,289,746.18
  5. Step 5: Solve for x
    x = 18,289,746.18/6,313.82
  6. Step 6: Final answer
    x = 2,896.78

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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.