Home / 4,789.75-7,184.63-1,327

Finding the Fourth Proportional to 4,789.75, 7,184.63 and 1,327

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Solution

The fourth proportional to 4,789.75, 7,184.63 and 1,327 is: 1,990.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.75 : 7,184.63 = 1,327 : x
  2. Step 2: Convert to fraction form
    4,789.75/7,184.63 = 1,327/x
  3. Step 3: Cross multiply
    4,789.75x = 7,184.63 × 1,327
  4. Step 4: Simplify right side
    4,789.75x = 9,534,004.01
  5. Step 5: Solve for x
    x = 9,534,004.01/4,789.75
  6. Step 6: Final answer
    x = 1,990.50

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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.