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Finding the Fourth Proportional to 3,161.54, 4,741.77 and 852.50

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Solution

The fourth proportional to 3,161.54, 4,741.77 and 852.50 is: 1,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.54 : 4,741.77 = 852.50 : x
  2. Step 2: Convert to fraction form
    3,161.54/4,741.77 = 852.50/x
  3. Step 3: Cross multiply
    3,161.54x = 4,741.77 × 852.50
  4. Step 4: Simplify right side
    3,161.54x = 4,042,358.93
  5. Step 5: Solve for x
    x = 4,042,358.93/3,161.54
  6. Step 6: Final answer
    x = 1,278.60

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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.