Home / 1,136.26-1,703.40-942.87

Finding the Fourth Proportional to 1,136.26, 1,703.40 and 942.87

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Solution

The fourth proportional to 1,136.26, 1,703.40 and 942.87 is: 1,413.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.26 : 1,703.40 = 942.87 : x
  2. Step 2: Convert to fraction form
    1,136.26/1,703.40 = 942.87/x
  3. Step 3: Cross multiply
    1,136.26x = 1,703.40 × 942.87
  4. Step 4: Simplify right side
    1,136.26x = 1,606,084.76
  5. Step 5: Solve for x
    x = 1,606,084.76/1,136.26
  6. Step 6: Final answer
    x = 1,413.48

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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.