Home / 4,782.02-7,171.94-1,819.40

Finding the Fourth Proportional to 4,782.02, 7,171.94 and 1,819.40

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Solution

The fourth proportional to 4,782.02, 7,171.94 and 1,819.40 is: 2,728.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782.02 : 7,171.94 = 1,819.40 : x
  2. Step 2: Convert to fraction form
    4,782.02/7,171.94 = 1,819.40/x
  3. Step 3: Cross multiply
    4,782.02x = 7,171.94 × 1,819.40
  4. Step 4: Simplify right side
    4,782.02x = 13,048,627.64
  5. Step 5: Solve for x
    x = 13,048,627.64/4,782.02
  6. Step 6: Final answer
    x = 2,728.69

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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.