Home / 2,941.80-4,059.78-1,682.40

Finding the Fourth Proportional to 2,941.80, 4,059.78 and 1,682.40

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Solution

The fourth proportional to 2,941.80, 4,059.78 and 1,682.40 is: 2,321.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,941.80 : 4,059.78 = 1,682.40 : x
  2. Step 2: Convert to fraction form
    2,941.80/4,059.78 = 1,682.40/x
  3. Step 3: Cross multiply
    2,941.80x = 4,059.78 × 1,682.40
  4. Step 4: Simplify right side
    2,941.80x = 6,830,173.87
  5. Step 5: Solve for x
    x = 6,830,173.87/2,941.80
  6. Step 6: Final answer
    x = 2,321.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.