Home / 2,921.94-4,382.79-1,622.58

Finding the Fourth Proportional to 2,921.94, 4,382.79 and 1,622.58

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Solution

The fourth proportional to 2,921.94, 4,382.79 and 1,622.58 is: 2,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.94 : 4,382.79 = 1,622.58 : x
  2. Step 2: Convert to fraction form
    2,921.94/4,382.79 = 1,622.58/x
  3. Step 3: Cross multiply
    2,921.94x = 4,382.79 × 1,622.58
  4. Step 4: Simplify right side
    2,921.94x = 7,111,427.40
  5. Step 5: Solve for x
    x = 7,111,427.40/2,921.94
  6. Step 6: Final answer
    x = 2,433.80

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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.