Home / 4,879.02-7,319.25-1,415.82

Finding the Fourth Proportional to 4,879.02, 7,319.25 and 1,415.82

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Solution

The fourth proportional to 4,879.02, 7,319.25 and 1,415.82 is: 2,123.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.02 : 7,319.25 = 1,415.82 : x
  2. Step 2: Convert to fraction form
    4,879.02/7,319.25 = 1,415.82/x
  3. Step 3: Cross multiply
    4,879.02x = 7,319.25 × 1,415.82
  4. Step 4: Simplify right side
    4,879.02x = 10,362,740.54
  5. Step 5: Solve for x
    x = 10,362,740.54/4,879.02
  6. Step 6: Final answer
    x = 2,123.94

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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.