Home / 7,848.40-11,770.68-2,652.88

Finding the Fourth Proportional to 7,848.40, 11,770.68 and 2,652.88

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Solution

The fourth proportional to 7,848.40, 11,770.68 and 2,652.88 is: 3,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,848.40 : 11,770.68 = 2,652.88 : x
  2. Step 2: Convert to fraction form
    7,848.40/11,770.68 = 2,652.88/x
  3. Step 3: Cross multiply
    7,848.40x = 11,770.68 × 2,652.88
  4. Step 4: Simplify right side
    7,848.40x = 31,226,201.56
  5. Step 5: Solve for x
    x = 31,226,201.56/7,848.40
  6. Step 6: Final answer
    x = 3,978.67

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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.