Home / 5,371.47-7,413.40-2,981.99

Finding the Fourth Proportional to 5,371.47, 7,413.40 and 2,981.99

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Solution

The fourth proportional to 5,371.47, 7,413.40 and 2,981.99 is: 4,115.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.47 : 7,413.40 = 2,981.99 : x
  2. Step 2: Convert to fraction form
    5,371.47/7,413.40 = 2,981.99/x
  3. Step 3: Cross multiply
    5,371.47x = 7,413.40 × 2,981.99
  4. Step 4: Simplify right side
    5,371.47x = 22,106,684.67
  5. Step 5: Solve for x
    x = 22,106,684.67/5,371.47
  6. Step 6: Final answer
    x = 4,115.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.