Home / 1,908.43-2,862.65-1,075.56

Finding the Fourth Proportional to 1,908.43, 2,862.65 and 1,075.56

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Solution

The fourth proportional to 1,908.43, 2,862.65 and 1,075.56 is: 1,613.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.43 : 2,862.65 = 1,075.56 : x
  2. Step 2: Convert to fraction form
    1,908.43/2,862.65 = 1,075.56/x
  3. Step 3: Cross multiply
    1,908.43x = 2,862.65 × 1,075.56
  4. Step 4: Simplify right side
    1,908.43x = 3,078,951.83
  5. Step 5: Solve for x
    x = 3,078,951.83/1,908.43
  6. Step 6: Final answer
    x = 1,613.34

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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.