Home / 3,119.77-4,679.21-1,270.92

Finding the Fourth Proportional to 3,119.77, 4,679.21 and 1,270.92

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Solution

The fourth proportional to 3,119.77, 4,679.21 and 1,270.92 is: 1,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.77 : 4,679.21 = 1,270.92 : x
  2. Step 2: Convert to fraction form
    3,119.77/4,679.21 = 1,270.92/x
  3. Step 3: Cross multiply
    3,119.77x = 4,679.21 × 1,270.92
  4. Step 4: Simplify right side
    3,119.77x = 5,946,901.57
  5. Step 5: Solve for x
    x = 5,946,901.57/3,119.77
  6. Step 6: Final answer
    x = 1,906.20

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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.