Home / 3,171.90-4,762.62-1,944.45

Finding the Fourth Proportional to 3,171.90, 4,762.62 and 1,944.45

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Solution

The fourth proportional to 3,171.90, 4,762.62 and 1,944.45 is: 2,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.90 : 4,762.62 = 1,944.45 : x
  2. Step 2: Convert to fraction form
    3,171.90/4,762.62 = 1,944.45/x
  3. Step 3: Cross multiply
    3,171.90x = 4,762.62 × 1,944.45
  4. Step 4: Simplify right side
    3,171.90x = 9,260,676.46
  5. Step 5: Solve for x
    x = 9,260,676.46/3,171.90
  6. Step 6: Final answer
    x = 2,919.60

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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.