Home / 2,939.64-4,412.34-1,401.72

Finding the Fourth Proportional to 2,939.64, 4,412.34 and 1,401.72

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Solution

The fourth proportional to 2,939.64, 4,412.34 and 1,401.72 is: 2,103.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.64 : 4,412.34 = 1,401.72 : x
  2. Step 2: Convert to fraction form
    2,939.64/4,412.34 = 1,401.72/x
  3. Step 3: Cross multiply
    2,939.64x = 4,412.34 × 1,401.72
  4. Step 4: Simplify right side
    2,939.64x = 6,184,865.22
  5. Step 5: Solve for x
    x = 6,184,865.22/2,939.64
  6. Step 6: Final answer
    x = 2,103.95

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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.