Home / 5,413.08-8,120.84-1,715.53

Finding the Fourth Proportional to 5,413.08, 8,120.84 and 1,715.53

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Solution

The fourth proportional to 5,413.08, 8,120.84 and 1,715.53 is: 2,573.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.08 : 8,120.84 = 1,715.53 : x
  2. Step 2: Convert to fraction form
    5,413.08/8,120.84 = 1,715.53/x
  3. Step 3: Cross multiply
    5,413.08x = 8,120.84 × 1,715.53
  4. Step 4: Simplify right side
    5,413.08x = 13,931,544.65
  5. Step 5: Solve for x
    x = 13,931,544.65/5,413.08
  6. Step 6: Final answer
    x = 2,573.68

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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.