Home / 2,945.53-4,063.57-2,158.21

Finding the Fourth Proportional to 2,945.53, 4,063.57 and 2,158.21

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Solution

The fourth proportional to 2,945.53, 4,063.57 and 2,158.21 is: 2,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.53 : 4,063.57 = 2,158.21 : x
  2. Step 2: Convert to fraction form
    2,945.53/4,063.57 = 2,158.21/x
  3. Step 3: Cross multiply
    2,945.53x = 4,063.57 × 2,158.21
  4. Step 4: Simplify right side
    2,945.53x = 8,770,037.41
  5. Step 5: Solve for x
    x = 8,770,037.41/2,945.53
  6. Step 6: Final answer
    x = 2,977.41

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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.