Home / 7,881.00-11,821.55-2,037.56

Finding the Fourth Proportional to 7,881.00, 11,821.55 and 2,037.56

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Solution

The fourth proportional to 7,881.00, 11,821.55 and 2,037.56 is: 3,056.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.00 : 11,821.55 = 2,037.56 : x
  2. Step 2: Convert to fraction form
    7,881.00/11,821.55 = 2,037.56/x
  3. Step 3: Cross multiply
    7,881.00x = 11,821.55 × 2,037.56
  4. Step 4: Simplify right side
    7,881.00x = 24,087,048.12
  5. Step 5: Solve for x
    x = 24,087,048.12/7,881.00
  6. Step 6: Final answer
    x = 3,056.35

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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.