Home / 6,917.40-10,384.20-3,958.20

Finding the Fourth Proportional to 6,917.40, 10,384.20 and 3,958.20

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Solution

The fourth proportional to 6,917.40, 10,384.20 and 3,958.20 is: 5,941.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.40 : 10,384.20 = 3,958.20 : x
  2. Step 2: Convert to fraction form
    6,917.40/10,384.20 = 3,958.20/x
  3. Step 3: Cross multiply
    6,917.40x = 10,384.20 × 3,958.20
  4. Step 4: Simplify right side
    6,917.40x = 41,102,740.44
  5. Step 5: Solve for x
    x = 41,102,740.44/6,917.40
  6. Step 6: Final answer
    x = 5,941.93

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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.