Home / 5,531.40-8,286-2,749.68

Finding the Fourth Proportional to 5,531.40, 8,286 and 2,749.68

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Solution

The fourth proportional to 5,531.40, 8,286 and 2,749.68 is: 4,119.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.40 : 8,286 = 2,749.68 : x
  2. Step 2: Convert to fraction form
    5,531.40/8,286 = 2,749.68/x
  3. Step 3: Cross multiply
    5,531.40x = 8,286 × 2,749.68
  4. Step 4: Simplify right side
    5,531.40x = 22,783,848.48
  5. Step 5: Solve for x
    x = 22,783,848.48/5,531.40
  6. Step 6: Final answer
    x = 4,119.00

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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.