Home / 1,930.12-2,896.54-1,382.76

Finding the Fourth Proportional to 1,930.12, 2,896.54 and 1,382.76

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Solution

The fourth proportional to 1,930.12, 2,896.54 and 1,382.76 is: 2,075.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.12 : 2,896.54 = 1,382.76 : x
  2. Step 2: Convert to fraction form
    1,930.12/2,896.54 = 1,382.76/x
  3. Step 3: Cross multiply
    1,930.12x = 2,896.54 × 1,382.76
  4. Step 4: Simplify right side
    1,930.12x = 4,005,219.65
  5. Step 5: Solve for x
    x = 4,005,219.65/1,930.12
  6. Step 6: Final answer
    x = 2,075.11

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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.