Home / 5,376.96-7,421.19-3,019.86

Finding the Fourth Proportional to 5,376.96, 7,421.19 and 3,019.86

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Solution

The fourth proportional to 5,376.96, 7,421.19 and 3,019.86 is: 4,167.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.96 : 7,421.19 = 3,019.86 : x
  2. Step 2: Convert to fraction form
    5,376.96/7,421.19 = 3,019.86/x
  3. Step 3: Cross multiply
    5,376.96x = 7,421.19 × 3,019.86
  4. Step 4: Simplify right side
    5,376.96x = 22,410,954.83
  5. Step 5: Solve for x
    x = 22,410,954.83/5,376.96
  6. Step 6: Final answer
    x = 4,167.96

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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.