Home / 4,879.12-7,319.60-1,957.65

Finding the Fourth Proportional to 4,879.12, 7,319.60 and 1,957.65

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Solution

The fourth proportional to 4,879.12, 7,319.60 and 1,957.65 is: 2,936.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.12 : 7,319.60 = 1,957.65 : x
  2. Step 2: Convert to fraction form
    4,879.12/7,319.60 = 1,957.65/x
  3. Step 3: Cross multiply
    4,879.12x = 7,319.60 × 1,957.65
  4. Step 4: Simplify right side
    4,879.12x = 14,329,214.94
  5. Step 5: Solve for x
    x = 14,329,214.94/4,879.12
  6. Step 6: Final answer
    x = 2,936.84

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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.