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Finding the Fourth Proportional to 3,293.70, 4,898.16 and 3,189.87

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Solution

The fourth proportional to 3,293.70, 4,898.16 and 3,189.87 is: 4,743.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,293.70 : 4,898.16 = 3,189.87 : x
  2. Step 2: Convert to fraction form
    3,293.70/4,898.16 = 3,189.87/x
  3. Step 3: Cross multiply
    3,293.70x = 4,898.16 × 3,189.87
  4. Step 4: Simplify right side
    3,293.70x = 15,624,493.64
  5. Step 5: Solve for x
    x = 15,624,493.64/3,293.70
  6. Step 6: Final answer
    x = 4,743.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.