Home / 1,914.92-2,642.79-1,075.85

Finding the Fourth Proportional to 1,914.92, 2,642.79 and 1,075.85

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Solution

The fourth proportional to 1,914.92, 2,642.79 and 1,075.85 is: 1,484.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.92 : 2,642.79 = 1,075.85 : x
  2. Step 2: Convert to fraction form
    1,914.92/2,642.79 = 1,075.85/x
  3. Step 3: Cross multiply
    1,914.92x = 2,642.79 × 1,075.85
  4. Step 4: Simplify right side
    1,914.92x = 2,843,232.41
  5. Step 5: Solve for x
    x = 2,843,232.41/1,914.92
  6. Step 6: Final answer
    x = 1,484.78

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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.