Home / 5,379.48-7,423.79-3,021.50

Finding the Fourth Proportional to 5,379.48, 7,423.79 and 3,021.50

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Solution

The fourth proportional to 5,379.48, 7,423.79 and 3,021.50 is: 4,169.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.48 : 7,423.79 = 3,021.50 : x
  2. Step 2: Convert to fraction form
    5,379.48/7,423.79 = 3,021.50/x
  3. Step 3: Cross multiply
    5,379.48x = 7,423.79 × 3,021.50
  4. Step 4: Simplify right side
    5,379.48x = 22,430,984.94
  5. Step 5: Solve for x
    x = 22,430,984.94/5,379.48
  6. Step 6: Final answer
    x = 4,169.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.