Home / 2,941.88-4,391.80-2,839.40

Finding the Fourth Proportional to 2,941.88, 4,391.80 and 2,839.40

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Solution

The fourth proportional to 2,941.88, 4,391.80 and 2,839.40 is: 4,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,941.88 : 4,391.80 = 2,839.40 : x
  2. Step 2: Convert to fraction form
    2,941.88/4,391.80 = 2,839.40/x
  3. Step 3: Cross multiply
    2,941.88x = 4,391.80 × 2,839.40
  4. Step 4: Simplify right side
    2,941.88x = 12,470,076.92
  5. Step 5: Solve for x
    x = 12,470,076.92/2,941.88
  6. Step 6: Final answer
    x = 4,238.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.