Home / 1,611.75-2,413.49-1,117.45

Finding the Fourth Proportional to 1,611.75, 2,413.49 and 1,117.45

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Solution

The fourth proportional to 1,611.75, 2,413.49 and 1,117.45 is: 1,673.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.75 : 2,413.49 = 1,117.45 : x
  2. Step 2: Convert to fraction form
    1,611.75/2,413.49 = 1,117.45/x
  3. Step 3: Cross multiply
    1,611.75x = 2,413.49 × 1,117.45
  4. Step 4: Simplify right side
    1,611.75x = 2,696,948.81
  5. Step 5: Solve for x
    x = 2,696,948.81/1,611.75
  6. Step 6: Final answer
    x = 1,673.31

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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.