Home / 1,821.76-2,514.94-1,075.94

Finding the Fourth Proportional to 1,821.76, 2,514.94 and 1,075.94

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Solution

The fourth proportional to 1,821.76, 2,514.94 and 1,075.94 is: 1,485.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.76 : 2,514.94 = 1,075.94 : x
  2. Step 2: Convert to fraction form
    1,821.76/2,514.94 = 1,075.94/x
  3. Step 3: Cross multiply
    1,821.76x = 2,514.94 × 1,075.94
  4. Step 4: Simplify right side
    1,821.76x = 2,705,924.54
  5. Step 5: Solve for x
    x = 2,705,924.54/1,821.76
  6. Step 6: Final answer
    x = 1,485.34

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1.5x scale

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.