Home / 5,289.21-7,909.53-3,887.94

Finding the Fourth Proportional to 5,289.21, 7,909.53 and 3,887.94

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Solution

The fourth proportional to 5,289.21, 7,909.53 and 3,887.94 is: 5,814.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.21 : 7,909.53 = 3,887.94 : x
  2. Step 2: Convert to fraction form
    5,289.21/7,909.53 = 3,887.94/x
  3. Step 3: Cross multiply
    5,289.21x = 7,909.53 × 3,887.94
  4. Step 4: Simplify right side
    5,289.21x = 30,751,778.07
  5. Step 5: Solve for x
    x = 30,751,778.07/5,289.21
  6. Step 6: Final answer
    x = 5,814.06

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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.