Home / 2,934.40-4,401.60-1,289.20

Finding the Fourth Proportional to 2,934.40, 4,401.60 and 1,289.20

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Solution

The fourth proportional to 2,934.40, 4,401.60 and 1,289.20 is: 1,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,934.40 : 4,401.60 = 1,289.20 : x
  2. Step 2: Convert to fraction form
    2,934.40/4,401.60 = 1,289.20/x
  3. Step 3: Cross multiply
    2,934.40x = 4,401.60 × 1,289.20
  4. Step 4: Simplify right side
    2,934.40x = 5,674,542.72
  5. Step 5: Solve for x
    x = 5,674,542.72/2,934.40
  6. Step 6: Final answer
    x = 1,933.80

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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.