Home / 3,413.76-5,117.88-3,140.40

Finding the Fourth Proportional to 3,413.76, 5,117.88 and 3,140.40

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Solution

The fourth proportional to 3,413.76, 5,117.88 and 3,140.40 is: 4,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.76 : 5,117.88 = 3,140.40 : x
  2. Step 2: Convert to fraction form
    3,413.76/5,117.88 = 3,140.40/x
  3. Step 3: Cross multiply
    3,413.76x = 5,117.88 × 3,140.40
  4. Step 4: Simplify right side
    3,413.76x = 16,072,190.35
  5. Step 5: Solve for x
    x = 16,072,190.35/3,413.76
  6. Step 6: Final answer
    x = 4,708.06

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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.