Home / 5,379.60-7,423.92-3,021.60

Finding the Fourth Proportional to 5,379.60, 7,423.92 and 3,021.60

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Solution

The fourth proportional to 5,379.60, 7,423.92 and 3,021.60 is: 4,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.60 : 7,423.92 = 3,021.60 : x
  2. Step 2: Convert to fraction form
    5,379.60/7,423.92 = 3,021.60/x
  3. Step 3: Cross multiply
    5,379.60x = 7,423.92 × 3,021.60
  4. Step 4: Simplify right side
    5,379.60x = 22,432,116.67
  5. Step 5: Solve for x
    x = 22,432,116.67/5,379.60
  6. Step 6: Final answer
    x = 4,169.85

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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.