Home / 2,961.03-4,438.58-1,921.71

Finding the Fourth Proportional to 2,961.03, 4,438.58 and 1,921.71

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Solution

The fourth proportional to 2,961.03, 4,438.58 and 1,921.71 is: 2,880.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.03 : 4,438.58 = 1,921.71 : x
  2. Step 2: Convert to fraction form
    2,961.03/4,438.58 = 1,921.71/x
  3. Step 3: Cross multiply
    2,961.03x = 4,438.58 × 1,921.71
  4. Step 4: Simplify right side
    2,961.03x = 8,529,653.96
  5. Step 5: Solve for x
    x = 8,529,653.96/2,961.03
  6. Step 6: Final answer
    x = 2,880.64

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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.