Home / 2,175.12-3,262.68-942.48

Finding the Fourth Proportional to 2,175.12, 3,262.68 and 942.48

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Solution

The fourth proportional to 2,175.12, 3,262.68 and 942.48 is: 1,413.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.12 : 3,262.68 = 942.48 : x
  2. Step 2: Convert to fraction form
    2,175.12/3,262.68 = 942.48/x
  3. Step 3: Cross multiply
    2,175.12x = 3,262.68 × 942.48
  4. Step 4: Simplify right side
    2,175.12x = 3,075,010.65
  5. Step 5: Solve for x
    x = 3,075,010.65/2,175.12
  6. Step 6: Final answer
    x = 1,413.72

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1.5x scale

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.