Home / 3,119.21-4,679.02-1,039.41

Finding the Fourth Proportional to 3,119.21, 4,679.02 and 1,039.41

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Solution

The fourth proportional to 3,119.21, 4,679.02 and 1,039.41 is: 1,559.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.21 : 4,679.02 = 1,039.41 : x
  2. Step 2: Convert to fraction form
    3,119.21/4,679.02 = 1,039.41/x
  3. Step 3: Cross multiply
    3,119.21x = 4,679.02 × 1,039.41
  4. Step 4: Simplify right side
    3,119.21x = 4,863,402.47
  5. Step 5: Solve for x
    x = 4,863,402.47/3,119.21
  6. Step 6: Final answer
    x = 1,559.18

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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.