Home / 3,119.04-4,679.37-927.99

Finding the Fourth Proportional to 3,119.04, 4,679.37 and 927.99

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Solution

The fourth proportional to 3,119.04, 4,679.37 and 927.99 is: 1,392.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.04 : 4,679.37 = 927.99 : x
  2. Step 2: Convert to fraction form
    3,119.04/4,679.37 = 927.99/x
  3. Step 3: Cross multiply
    3,119.04x = 4,679.37 × 927.99
  4. Step 4: Simplify right side
    3,119.04x = 4,342,408.57
  5. Step 5: Solve for x
    x = 4,342,408.57/3,119.04
  6. Step 6: Final answer
    x = 1,392.23

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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.