Home / 2,945.30-4,056.21-2,059.56

Finding the Fourth Proportional to 2,945.30, 4,056.21 and 2,059.56

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Solution

The fourth proportional to 2,945.30, 4,056.21 and 2,059.56 is: 2,836.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.30 : 4,056.21 = 2,059.56 : x
  2. Step 2: Convert to fraction form
    2,945.30/4,056.21 = 2,059.56/x
  3. Step 3: Cross multiply
    2,945.30x = 4,056.21 × 2,059.56
  4. Step 4: Simplify right side
    2,945.30x = 8,354,007.87
  5. Step 5: Solve for x
    x = 8,354,007.87/2,945.30
  6. Step 6: Final answer
    x = 2,836.39

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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.