Home / 5,110.89-7,666.32-1,413.11

Finding the Fourth Proportional to 5,110.89, 7,666.32 and 1,413.11

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Solution

The fourth proportional to 5,110.89, 7,666.32 and 1,413.11 is: 2,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.89 : 7,666.32 = 1,413.11 : x
  2. Step 2: Convert to fraction form
    5,110.89/7,666.32 = 1,413.11/x
  3. Step 3: Cross multiply
    5,110.89x = 7,666.32 × 1,413.11
  4. Step 4: Simplify right side
    5,110.89x = 10,833,315.12
  5. Step 5: Solve for x
    x = 10,833,315.12/5,110.89
  6. Step 6: Final answer
    x = 2,119.65

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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.