Home / 2,963.89-4,091.51-1,903.20

Finding the Fourth Proportional to 2,963.89, 4,091.51 and 1,903.20

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Solution

The fourth proportional to 2,963.89, 4,091.51 and 1,903.20 is: 2,627.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.89 : 4,091.51 = 1,903.20 : x
  2. Step 2: Convert to fraction form
    2,963.89/4,091.51 = 1,903.20/x
  3. Step 3: Cross multiply
    2,963.89x = 4,091.51 × 1,903.20
  4. Step 4: Simplify right side
    2,963.89x = 7,786,951.25
  5. Step 5: Solve for x
    x = 7,786,951.25/2,963.89
  6. Step 6: Final answer
    x = 2,627.27

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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.