Home / 3,197.63-4,412.76-1,781.39

Finding the Fourth Proportional to 3,197.63, 4,412.76 and 1,781.39

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Solution

The fourth proportional to 3,197.63, 4,412.76 and 1,781.39 is: 2,458.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.63 : 4,412.76 = 1,781.39 : x
  2. Step 2: Convert to fraction form
    3,197.63/4,412.76 = 1,781.39/x
  3. Step 3: Cross multiply
    3,197.63x = 4,412.76 × 1,781.39
  4. Step 4: Simplify right side
    3,197.63x = 7,860,846.54
  5. Step 5: Solve for x
    x = 7,860,846.54/3,197.63
  6. Step 6: Final answer
    x = 2,458.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.