Home / 4,880.90-7,321.35-2,814.41

Finding the Fourth Proportional to 4,880.90, 7,321.35 and 2,814.41

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Solution

The fourth proportional to 4,880.90, 7,321.35 and 2,814.41 is: 4,221.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.90 : 7,321.35 = 2,814.41 : x
  2. Step 2: Convert to fraction form
    4,880.90/7,321.35 = 2,814.41/x
  3. Step 3: Cross multiply
    4,880.90x = 7,321.35 × 2,814.41
  4. Step 4: Simplify right side
    4,880.90x = 20,605,280.65
  5. Step 5: Solve for x
    x = 20,605,280.65/4,880.90
  6. Step 6: Final answer
    x = 4,221.62

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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.