Home / 2,299.08-3,171.12-1,413.72

Finding the Fourth Proportional to 2,299.08, 3,171.12 and 1,413.72

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Solution

The fourth proportional to 2,299.08, 3,171.12 and 1,413.72 is: 1,949.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.08 : 3,171.12 = 1,413.72 : x
  2. Step 2: Convert to fraction form
    2,299.08/3,171.12 = 1,413.72/x
  3. Step 3: Cross multiply
    2,299.08x = 3,171.12 × 1,413.72
  4. Step 4: Simplify right side
    2,299.08x = 4,483,075.77
  5. Step 5: Solve for x
    x = 4,483,075.77/2,299.08
  6. Step 6: Final answer
    x = 1,949.94

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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.