Home / 4,880.19-7,321.50-1,918.83

Finding the Fourth Proportional to 4,880.19, 7,321.50 and 1,918.83

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Solution

The fourth proportional to 4,880.19, 7,321.50 and 1,918.83 is: 2,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.19 : 7,321.50 = 1,918.83 : x
  2. Step 2: Convert to fraction form
    4,880.19/7,321.50 = 1,918.83/x
  3. Step 3: Cross multiply
    4,880.19x = 7,321.50 × 1,918.83
  4. Step 4: Simplify right side
    4,880.19x = 14,048,713.85
  5. Step 5: Solve for x
    x = 14,048,713.85/4,880.19
  6. Step 6: Final answer
    x = 2,878.72

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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.