Home / 4,413.61-6,620.55-1,126.77

Finding the Fourth Proportional to 4,413.61, 6,620.55 and 1,126.77

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Solution

The fourth proportional to 4,413.61, 6,620.55 and 1,126.77 is: 1,690.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,413.61 : 6,620.55 = 1,126.77 : x
  2. Step 2: Convert to fraction form
    4,413.61/6,620.55 = 1,126.77/x
  3. Step 3: Cross multiply
    4,413.61x = 6,620.55 × 1,126.77
  4. Step 4: Simplify right side
    4,413.61x = 7,459,837.12
  5. Step 5: Solve for x
    x = 7,459,837.12/4,413.61
  6. Step 6: Final answer
    x = 1,690.19

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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.