Home / 7,135.88-10,703.62-1,941.80

Finding the Fourth Proportional to 7,135.88, 10,703.62 and 1,941.80

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Solution

The fourth proportional to 7,135.88, 10,703.62 and 1,941.80 is: 2,912.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.88 : 10,703.62 = 1,941.80 : x
  2. Step 2: Convert to fraction form
    7,135.88/10,703.62 = 1,941.80/x
  3. Step 3: Cross multiply
    7,135.88x = 10,703.62 × 1,941.80
  4. Step 4: Simplify right side
    7,135.88x = 20,784,289.32
  5. Step 5: Solve for x
    x = 20,784,289.32/7,135.88
  6. Step 6: Final answer
    x = 2,912.65

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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.