Home / 5,278.96-7,917.83-1,383.67

Finding the Fourth Proportional to 5,278.96, 7,917.83 and 1,383.67

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Solution

The fourth proportional to 5,278.96, 7,917.83 and 1,383.67 is: 2,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.96 : 7,917.83 = 1,383.67 : x
  2. Step 2: Convert to fraction form
    5,278.96/7,917.83 = 1,383.67/x
  3. Step 3: Cross multiply
    5,278.96x = 7,917.83 × 1,383.67
  4. Step 4: Simplify right side
    5,278.96x = 10,955,663.84
  5. Step 5: Solve for x
    x = 10,955,663.84/5,278.96
  6. Step 6: Final answer
    x = 2,075.35

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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.