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Finding the Fourth Proportional to 3,309.41, 4,938.98 and 3,175.46

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Solution

The fourth proportional to 3,309.41, 4,938.98 and 3,175.46 is: 4,739.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.41 : 4,938.98 = 3,175.46 : x
  2. Step 2: Convert to fraction form
    3,309.41/4,938.98 = 3,175.46/x
  3. Step 3: Cross multiply
    3,309.41x = 4,938.98 × 3,175.46
  4. Step 4: Simplify right side
    3,309.41x = 15,683,533.43
  5. Step 5: Solve for x
    x = 15,683,533.43/3,309.41
  6. Step 6: Final answer
    x = 4,739.07

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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.