Home / 5,413.07-8,120.25-5,117.83

Finding the Fourth Proportional to 5,413.07, 8,120.25 and 5,117.83

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Solution

The fourth proportional to 5,413.07, 8,120.25 and 5,117.83 is: 7,677.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.07 : 8,120.25 = 5,117.83 : x
  2. Step 2: Convert to fraction form
    5,413.07/8,120.25 = 5,117.83/x
  3. Step 3: Cross multiply
    5,413.07x = 8,120.25 × 5,117.83
  4. Step 4: Simplify right side
    5,413.07x = 41,558,059.06
  5. Step 5: Solve for x
    x = 41,558,059.06/5,413.07
  6. Step 6: Final answer
    x = 7,677.35

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Half scale
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Double scale
Find fourth proportional to 5,414.07, 8,121.75 and 5,118.83
Similar ratio
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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.