Home / 1,907.22-2,858.88-1,290.99

Finding the Fourth Proportional to 1,907.22, 2,858.88 and 1,290.99

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Solution

The fourth proportional to 1,907.22, 2,858.88 and 1,290.99 is: 1,935.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.22 : 2,858.88 = 1,290.99 : x
  2. Step 2: Convert to fraction form
    1,907.22/2,858.88 = 1,290.99/x
  3. Step 3: Cross multiply
    1,907.22x = 2,858.88 × 1,290.99
  4. Step 4: Simplify right side
    1,907.22x = 3,690,785.49
  5. Step 5: Solve for x
    x = 3,690,785.49/1,907.22
  6. Step 6: Final answer
    x = 1,935.17

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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.