Home / 5,286.32-7,930.39-1,776.66

Finding the Fourth Proportional to 5,286.32, 7,930.39 and 1,776.66

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Solution

The fourth proportional to 5,286.32, 7,930.39 and 1,776.66 is: 2,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.32 : 7,930.39 = 1,776.66 : x
  2. Step 2: Convert to fraction form
    5,286.32/7,930.39 = 1,776.66/x
  3. Step 3: Cross multiply
    5,286.32x = 7,930.39 × 1,776.66
  4. Step 4: Simplify right side
    5,286.32x = 14,089,597.81
  5. Step 5: Solve for x
    x = 14,089,597.81/5,286.32
  6. Step 6: Final answer
    x = 2,665.30

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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.