Home / 3,119.24-4,679.17-1,039.43

Finding the Fourth Proportional to 3,119.24, 4,679.17 and 1,039.43

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Solution

The fourth proportional to 3,119.24, 4,679.17 and 1,039.43 is: 1,559.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.24 : 4,679.17 = 1,039.43 : x
  2. Step 2: Convert to fraction form
    3,119.24/4,679.17 = 1,039.43/x
  3. Step 3: Cross multiply
    3,119.24x = 4,679.17 × 1,039.43
  4. Step 4: Simplify right side
    3,119.24x = 4,863,678.77
  5. Step 5: Solve for x
    x = 4,863,678.77/3,119.24
  6. Step 6: Final answer
    x = 1,559.25

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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.