Home / 2,921.33-4,382.49-1,277.84

Finding the Fourth Proportional to 2,921.33, 4,382.49 and 1,277.84

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Solution

The fourth proportional to 2,921.33, 4,382.49 and 1,277.84 is: 1,916.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.33 : 4,382.49 = 1,277.84 : x
  2. Step 2: Convert to fraction form
    2,921.33/4,382.49 = 1,277.84/x
  3. Step 3: Cross multiply
    2,921.33x = 4,382.49 × 1,277.84
  4. Step 4: Simplify right side
    2,921.33x = 5,600,121.02
  5. Step 5: Solve for x
    x = 5,600,121.02/2,921.33
  6. Step 6: Final answer
    x = 1,916.98

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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.