Home / 2,379.70-3,570.77-1,148.16

Finding the Fourth Proportional to 2,379.70, 3,570.77 and 1,148.16

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Solution

The fourth proportional to 2,379.70, 3,570.77 and 1,148.16 is: 1,722.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.70 : 3,570.77 = 1,148.16 : x
  2. Step 2: Convert to fraction form
    2,379.70/3,570.77 = 1,148.16/x
  3. Step 3: Cross multiply
    2,379.70x = 3,570.77 × 1,148.16
  4. Step 4: Simplify right side
    2,379.70x = 4,099,815.28
  5. Step 5: Solve for x
    x = 4,099,815.28/2,379.70
  6. Step 6: Final answer
    x = 1,722.83

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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.