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Finding the Fourth Proportional to 3,503.92, 5,256.39 and 1,628.91

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Solution

The fourth proportional to 3,503.92, 5,256.39 and 1,628.91 is: 2,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.92 : 5,256.39 = 1,628.91 : x
  2. Step 2: Convert to fraction form
    3,503.92/5,256.39 = 1,628.91/x
  3. Step 3: Cross multiply
    3,503.92x = 5,256.39 × 1,628.91
  4. Step 4: Simplify right side
    3,503.92x = 8,562,186.23
  5. Step 5: Solve for x
    x = 8,562,186.23/3,503.92
  6. Step 6: Final answer
    x = 2,443.60

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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.