Home / 2,239.80-3,360.90-942.18

Finding the Fourth Proportional to 2,239.80, 3,360.90 and 942.18

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Solution

The fourth proportional to 2,239.80, 3,360.90 and 942.18 is: 1,413.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.80 : 3,360.90 = 942.18 : x
  2. Step 2: Convert to fraction form
    2,239.80/3,360.90 = 942.18/x
  3. Step 3: Cross multiply
    2,239.80x = 3,360.90 × 942.18
  4. Step 4: Simplify right side
    2,239.80x = 3,166,572.76
  5. Step 5: Solve for x
    x = 3,166,572.76/2,239.80
  6. Step 6: Final answer
    x = 1,413.77

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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.