Home / 4,413.47-6,620.30-1,126.55

Finding the Fourth Proportional to 4,413.47, 6,620.30 and 1,126.55

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Solution

The fourth proportional to 4,413.47, 6,620.30 and 1,126.55 is: 1,689.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,413.47 : 6,620.30 = 1,126.55 : x
  2. Step 2: Convert to fraction form
    4,413.47/6,620.30 = 1,126.55/x
  3. Step 3: Cross multiply
    4,413.47x = 6,620.30 × 1,126.55
  4. Step 4: Simplify right side
    4,413.47x = 7,458,060.23
  5. Step 5: Solve for x
    x = 7,458,060.23/4,413.47
  6. Step 6: Final answer
    x = 1,689.84

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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.