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Finding the Fourth Proportional to 7,101.55, 10,653.11 and 1,907.83

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Solution

The fourth proportional to 7,101.55, 10,653.11 and 1,907.83 is: 2,861.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.55 : 10,653.11 = 1,907.83 : x
  2. Step 2: Convert to fraction form
    7,101.55/10,653.11 = 1,907.83/x
  3. Step 3: Cross multiply
    7,101.55x = 10,653.11 × 1,907.83
  4. Step 4: Simplify right side
    7,101.55x = 20,324,322.85
  5. Step 5: Solve for x
    x = 20,324,322.85/7,101.55
  6. Step 6: Final answer
    x = 2,861.96

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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.