Home / 4,879.47-7,320.57-1,959.82

Finding the Fourth Proportional to 4,879.47, 7,320.57 and 1,959.82

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Solution

The fourth proportional to 4,879.47, 7,320.57 and 1,959.82 is: 2,940.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.47 : 7,320.57 = 1,959.82 : x
  2. Step 2: Convert to fraction form
    4,879.47/7,320.57 = 1,959.82/x
  3. Step 3: Cross multiply
    4,879.47x = 7,320.57 × 1,959.82
  4. Step 4: Simplify right side
    4,879.47x = 14,346,989.70
  5. Step 5: Solve for x
    x = 14,346,989.70/4,879.47
  6. Step 6: Final answer
    x = 2,940.28

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1.5x scale

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.