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Finding the Fourth Proportional to 2,313.92, 3,470.34 and 670.12

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Solution

The fourth proportional to 2,313.92, 3,470.34 and 670.12 is: 1,005.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.92 : 3,470.34 = 670.12 : x
  2. Step 2: Convert to fraction form
    2,313.92/3,470.34 = 670.12/x
  3. Step 3: Cross multiply
    2,313.92x = 3,470.34 × 670.12
  4. Step 4: Simplify right side
    2,313.92x = 2,325,544.24
  5. Step 5: Solve for x
    x = 2,325,544.24/2,313.92
  6. Step 6: Final answer
    x = 1,005.02

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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.