Home / 2,312.94-3,469.60-669.63

Finding the Fourth Proportional to 2,312.94, 3,469.60 and 669.63

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Solution

The fourth proportional to 2,312.94, 3,469.60 and 669.63 is: 1,004.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.94 : 3,469.60 = 669.63 : x
  2. Step 2: Convert to fraction form
    2,312.94/3,469.60 = 669.63/x
  3. Step 3: Cross multiply
    2,312.94x = 3,469.60 × 669.63
  4. Step 4: Simplify right side
    2,312.94x = 2,323,348.25
  5. Step 5: Solve for x
    x = 2,323,348.25/2,312.94
  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.