Home / 1,162.90-1,601.68-1,075.31

Finding the Fourth Proportional to 1,162.90, 1,601.68 and 1,075.31

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Solution

The fourth proportional to 1,162.90, 1,601.68 and 1,075.31 is: 1,481.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162.90 : 1,601.68 = 1,075.31 : x
  2. Step 2: Convert to fraction form
    1,162.90/1,601.68 = 1,075.31/x
  3. Step 3: Cross multiply
    1,162.90x = 1,601.68 × 1,075.31
  4. Step 4: Simplify right side
    1,162.90x = 1,722,297.14
  5. Step 5: Solve for x
    x = 1,722,297.14/1,162.90
  6. Step 6: Final answer
    x = 1,481.04

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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.