Home / 2,813.25-4,220.37-964.56

Finding the Fourth Proportional to 2,813.25, 4,220.37 and 964.56

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Solution

The fourth proportional to 2,813.25, 4,220.37 and 964.56 is: 1,447.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.25 : 4,220.37 = 964.56 : x
  2. Step 2: Convert to fraction form
    2,813.25/4,220.37 = 964.56/x
  3. Step 3: Cross multiply
    2,813.25x = 4,220.37 × 964.56
  4. Step 4: Simplify right side
    2,813.25x = 4,070,800.09
  5. Step 5: Solve for x
    x = 4,070,800.09/2,813.25
  6. Step 6: Final answer
    x = 1,447.01

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1.5x scale

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.