Home / 5,378.20-8,063.60-2,740.60

Finding the Fourth Proportional to 5,378.20, 8,063.60 and 2,740.60

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Solution

The fourth proportional to 5,378.20, 8,063.60 and 2,740.60 is: 4,109.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.20 : 8,063.60 = 2,740.60 : x
  2. Step 2: Convert to fraction form
    5,378.20/8,063.60 = 2,740.60/x
  3. Step 3: Cross multiply
    5,378.20x = 8,063.60 × 2,740.60
  4. Step 4: Simplify right side
    5,378.20x = 22,099,102.16
  5. Step 5: Solve for x
    x = 22,099,102.16/5,378.20
  6. Step 6: Final answer
    x = 4,109.01

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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.