Home / 5,413.12-8,119.68-1,950.16

Finding the Fourth Proportional to 5,413.12, 8,119.68 and 1,950.16

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Solution

The fourth proportional to 5,413.12, 8,119.68 and 1,950.16 is: 2,925.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.12 : 8,119.68 = 1,950.16 : x
  2. Step 2: Convert to fraction form
    5,413.12/8,119.68 = 1,950.16/x
  3. Step 3: Cross multiply
    5,413.12x = 8,119.68 × 1,950.16
  4. Step 4: Simplify right side
    5,413.12x = 15,834,675.15
  5. Step 5: Solve for x
    x = 15,834,675.15/5,413.12
  6. Step 6: Final answer
    x = 2,925.24

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Double scale
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Similar ratio
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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.