Home / 2,890.09-4,314.23-2,539.78

Finding the Fourth Proportional to 2,890.09, 4,314.23 and 2,539.78

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Solution

The fourth proportional to 2,890.09, 4,314.23 and 2,539.78 is: 3,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.09 : 4,314.23 = 2,539.78 : x
  2. Step 2: Convert to fraction form
    2,890.09/4,314.23 = 2,539.78/x
  3. Step 3: Cross multiply
    2,890.09x = 4,314.23 × 2,539.78
  4. Step 4: Simplify right side
    2,890.09x = 10,957,195.07
  5. Step 5: Solve for x
    x = 10,957,195.07/2,890.09
  6. Step 6: Final answer
    x = 3,791.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.