Home / 1,747.90-2,413.56-1,561.06

Finding the Fourth Proportional to 1,747.90, 2,413.56 and 1,561.06

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Solution

The fourth proportional to 1,747.90, 2,413.56 and 1,561.06 is: 2,155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.90 : 2,413.56 = 1,561.06 : x
  2. Step 2: Convert to fraction form
    1,747.90/2,413.56 = 1,561.06/x
  3. Step 3: Cross multiply
    1,747.90x = 2,413.56 × 1,561.06
  4. Step 4: Simplify right side
    1,747.90x = 3,767,711.97
  5. Step 5: Solve for x
    x = 3,767,711.97/1,747.90
  6. Step 6: Final answer
    x = 2,155.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.