Home / 2,865.94-3,954.90-1,671.19

Finding the Fourth Proportional to 2,865.94, 3,954.90 and 1,671.19

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Solution

The fourth proportional to 2,865.94, 3,954.90 and 1,671.19 is: 2,306.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.94 : 3,954.90 = 1,671.19 : x
  2. Step 2: Convert to fraction form
    2,865.94/3,954.90 = 1,671.19/x
  3. Step 3: Cross multiply
    2,865.94x = 3,954.90 × 1,671.19
  4. Step 4: Simplify right side
    2,865.94x = 6,609,389.33
  5. Step 5: Solve for x
    x = 6,609,389.33/2,865.94
  6. Step 6: Final answer
    x = 2,306.19

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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.