Home / 1,413.30-2,110.54-1,398.04

Finding the Fourth Proportional to 1,413.30, 2,110.54 and 1,398.04

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Solution

The fourth proportional to 1,413.30, 2,110.54 and 1,398.04 is: 2,087.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413.30 : 2,110.54 = 1,398.04 : x
  2. Step 2: Convert to fraction form
    1,413.30/2,110.54 = 1,398.04/x
  3. Step 3: Cross multiply
    1,413.30x = 2,110.54 × 1,398.04
  4. Step 4: Simplify right side
    1,413.30x = 2,950,619.34
  5. Step 5: Solve for x
    x = 2,950,619.34/1,413.30
  6. Step 6: Final answer
    x = 2,087.75

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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.