Home / 7,820.37-11,731.68-2,888.73

Finding the Fourth Proportional to 7,820.37, 11,731.68 and 2,888.73

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Solution

The fourth proportional to 7,820.37, 11,731.68 and 2,888.73 is: 4,333.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.37 : 11,731.68 = 2,888.73 : x
  2. Step 2: Convert to fraction form
    7,820.37/11,731.68 = 2,888.73/x
  3. Step 3: Cross multiply
    7,820.37x = 11,731.68 × 2,888.73
  4. Step 4: Simplify right side
    7,820.37x = 33,889,655.97
  5. Step 5: Solve for x
    x = 33,889,655.97/7,820.37
  6. Step 6: Final answer
    x = 4,333.51

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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.