Home / 2,942.60-4,413.90-2,899.40

Finding the Fourth Proportional to 2,942.60, 4,413.90 and 2,899.40

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Solution

The fourth proportional to 2,942.60, 4,413.90 and 2,899.40 is: 4,349.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.60 : 4,413.90 = 2,899.40 : x
  2. Step 2: Convert to fraction form
    2,942.60/4,413.90 = 2,899.40/x
  3. Step 3: Cross multiply
    2,942.60x = 4,413.90 × 2,899.40
  4. Step 4: Simplify right side
    2,942.60x = 12,797,661.66
  5. Step 5: Solve for x
    x = 12,797,661.66/2,942.60
  6. Step 6: Final answer
    x = 4,349.10

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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.