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Finding the Fourth Proportional to 5,288.28, 7,926.92 and 1,775.68

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Solution

The fourth proportional to 5,288.28, 7,926.92 and 1,775.68 is: 2,661.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288.28 : 7,926.92 = 1,775.68 : x
  2. Step 2: Convert to fraction form
    5,288.28/7,926.92 = 1,775.68/x
  3. Step 3: Cross multiply
    5,288.28x = 7,926.92 × 1,775.68
  4. Step 4: Simplify right side
    5,288.28x = 14,075,673.31
  5. Step 5: Solve for x
    x = 14,075,673.31/5,288.28
  6. Step 6: Final answer
    x = 2,661.67

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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.