Home / 1,907.28-2,631.33-1,161

Finding the Fourth Proportional to 1,907.28, 2,631.33 and 1,161

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Solution

The fourth proportional to 1,907.28, 2,631.33 and 1,161 is: 1,601.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.28 : 2,631.33 = 1,161 : x
  2. Step 2: Convert to fraction form
    1,907.28/2,631.33 = 1,161/x
  3. Step 3: Cross multiply
    1,907.28x = 2,631.33 × 1,161
  4. Step 4: Simplify right side
    1,907.28x = 3,054,974.13
  5. Step 5: Solve for x
    x = 3,054,974.13/1,907.28
  6. Step 6: Final answer
    x = 1,601.74

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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.