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Finding the Fourth Proportional to 4,992.88, 7,491.24 and 1,914.16

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Solution

The fourth proportional to 4,992.88, 7,491.24 and 1,914.16 is: 2,871.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.88 : 7,491.24 = 1,914.16 : x
  2. Step 2: Convert to fraction form
    4,992.88/7,491.24 = 1,914.16/x
  3. Step 3: Cross multiply
    4,992.88x = 7,491.24 × 1,914.16
  4. Step 4: Simplify right side
    4,992.88x = 14,339,431.96
  5. Step 5: Solve for x
    x = 14,339,431.96/4,992.88
  6. Step 6: Final answer
    x = 2,871.98

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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.