Home / 1,631.08-2,245.38-1,413.16

Finding the Fourth Proportional to 1,631.08, 2,245.38 and 1,413.16

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Solution

The fourth proportional to 1,631.08, 2,245.38 and 1,413.16 is: 1,945.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.08 : 2,245.38 = 1,413.16 : x
  2. Step 2: Convert to fraction form
    1,631.08/2,245.38 = 1,413.16/x
  3. Step 3: Cross multiply
    1,631.08x = 2,245.38 × 1,413.16
  4. Step 4: Simplify right side
    1,631.08x = 3,173,081.20
  5. Step 5: Solve for x
    x = 3,173,081.20/1,631.08
  6. Step 6: Final answer
    x = 1,945.39

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1.5x scale

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.