Home / 3,413.70-5,125.35-2,117.70

Finding the Fourth Proportional to 3,413.70, 5,125.35 and 2,117.70

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Solution

The fourth proportional to 3,413.70, 5,125.35 and 2,117.70 is: 3,179.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.70 : 5,125.35 = 2,117.70 : x
  2. Step 2: Convert to fraction form
    3,413.70/5,125.35 = 2,117.70/x
  3. Step 3: Cross multiply
    3,413.70x = 5,125.35 × 2,117.70
  4. Step 4: Simplify right side
    3,413.70x = 10,853,953.70
  5. Step 5: Solve for x
    x = 10,853,953.70/3,413.70
  6. Step 6: Final answer
    x = 3,179.53

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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.