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Finding the Fourth Proportional to 3,137.54, 4,706.26 and 946.18

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Solution

The fourth proportional to 3,137.54, 4,706.26 and 946.18 is: 1,419.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.54 : 4,706.26 = 946.18 : x
  2. Step 2: Convert to fraction form
    3,137.54/4,706.26 = 946.18/x
  3. Step 3: Cross multiply
    3,137.54x = 4,706.26 × 946.18
  4. Step 4: Simplify right side
    3,137.54x = 4,452,969.09
  5. Step 5: Solve for x
    x = 4,452,969.09/3,137.54
  6. Step 6: Final answer
    x = 1,419.25

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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.