Home / 4,879.18-7,319.78-1,957.71

Finding the Fourth Proportional to 4,879.18, 7,319.78 and 1,957.71

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Solution

The fourth proportional to 4,879.18, 7,319.78 and 1,957.71 is: 2,936.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.18 : 7,319.78 = 1,957.71 : x
  2. Step 2: Convert to fraction form
    4,879.18/7,319.78 = 1,957.71/x
  3. Step 3: Cross multiply
    4,879.18x = 7,319.78 × 1,957.71
  4. Step 4: Simplify right side
    4,879.18x = 14,329,984.83
  5. Step 5: Solve for x
    x = 14,329,984.83/4,879.18
  6. Step 6: Final answer
    x = 2,936.97

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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.