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Finding the Fourth Proportional to 3,149.79, 4,725.22 and 1,299.89

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Solution

The fourth proportional to 3,149.79, 4,725.22 and 1,299.89 is: 1,950.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.79 : 4,725.22 = 1,299.89 : x
  2. Step 2: Convert to fraction form
    3,149.79/4,725.22 = 1,299.89/x
  3. Step 3: Cross multiply
    3,149.79x = 4,725.22 × 1,299.89
  4. Step 4: Simplify right side
    3,149.79x = 6,142,266.23
  5. Step 5: Solve for x
    x = 6,142,266.23/3,149.79
  6. Step 6: Final answer
    x = 1,950.06

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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.