Home / 5,438.50-8,158.34-1,739.86

Finding the Fourth Proportional to 5,438.50, 8,158.34 and 1,739.86

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Solution

The fourth proportional to 5,438.50, 8,158.34 and 1,739.86 is: 2,609.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.50 : 8,158.34 = 1,739.86 : x
  2. Step 2: Convert to fraction form
    5,438.50/8,158.34 = 1,739.86/x
  3. Step 3: Cross multiply
    5,438.50x = 8,158.34 × 1,739.86
  4. Step 4: Simplify right side
    5,438.50x = 14,194,369.43
  5. Step 5: Solve for x
    x = 14,194,369.43/5,438.50
  6. Step 6: Final answer
    x = 2,609.98

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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.