Home / 7,871.10-11,798.33-2,604.75

Finding the Fourth Proportional to 7,871.10, 11,798.33 and 2,604.75

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Solution

The fourth proportional to 7,871.10, 11,798.33 and 2,604.75 is: 3,904.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.10 : 11,798.33 = 2,604.75 : x
  2. Step 2: Convert to fraction form
    7,871.10/11,798.33 = 2,604.75/x
  3. Step 3: Cross multiply
    7,871.10x = 11,798.33 × 2,604.75
  4. Step 4: Simplify right side
    7,871.10x = 30,731,687.04
  5. Step 5: Solve for x
    x = 30,731,687.04/7,871.10
  6. Step 6: Final answer
    x = 3,904.37

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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.