Home / 3,583.80-4,945.50-2,091.78

Finding the Fourth Proportional to 3,583.80, 4,945.50 and 2,091.78

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Solution

The fourth proportional to 3,583.80, 4,945.50 and 2,091.78 is: 2,886.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,583.80 : 4,945.50 = 2,091.78 : x
  2. Step 2: Convert to fraction form
    3,583.80/4,945.50 = 2,091.78/x
  3. Step 3: Cross multiply
    3,583.80x = 4,945.50 × 2,091.78
  4. Step 4: Simplify right side
    3,583.80x = 10,344,897.99
  5. Step 5: Solve for x
    x = 10,344,897.99/3,583.80
  6. Step 6: Final answer
    x = 2,886.57

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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.