Home / 2,313.18-3,469.66-669.69

Finding the Fourth Proportional to 2,313.18, 3,469.66 and 669.69

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Solution

The fourth proportional to 2,313.18, 3,469.66 and 669.69 is: 1,004.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.18 : 3,469.66 = 669.69 : x
  2. Step 2: Convert to fraction form
    2,313.18/3,469.66 = 669.69/x
  3. Step 3: Cross multiply
    2,313.18x = 3,469.66 × 669.69
  4. Step 4: Simplify right side
    2,313.18x = 2,323,585.69
  5. Step 5: Solve for x
    x = 2,323,585.69/2,313.18
  6. Step 6: Final answer
    x = 1,004.50

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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.