Home / 5,413.68-8,115.66-1,948.50

Finding the Fourth Proportional to 5,413.68, 8,115.66 and 1,948.50

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Solution

The fourth proportional to 5,413.68, 8,115.66 and 1,948.50 is: 2,921.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.68 : 8,115.66 = 1,948.50 : x
  2. Step 2: Convert to fraction form
    5,413.68/8,115.66 = 1,948.50/x
  3. Step 3: Cross multiply
    5,413.68x = 8,115.66 × 1,948.50
  4. Step 4: Simplify right side
    5,413.68x = 15,813,363.51
  5. Step 5: Solve for x
    x = 15,813,363.51/5,413.68
  6. Step 6: Final answer
    x = 2,921.00

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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.