Home / 1,413.40-2,110.01-1,205.80

Finding the Fourth Proportional to 1,413.40, 2,110.01 and 1,205.80

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Solution

The fourth proportional to 1,413.40, 2,110.01 and 1,205.80 is: 1,800.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413.40 : 2,110.01 = 1,205.80 : x
  2. Step 2: Convert to fraction form
    1,413.40/2,110.01 = 1,205.80/x
  3. Step 3: Cross multiply
    1,413.40x = 2,110.01 × 1,205.80
  4. Step 4: Simplify right side
    1,413.40x = 2,544,250.06
  5. Step 5: Solve for x
    x = 2,544,250.06/1,413.40
  6. Step 6: Final answer
    x = 1,800.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.