Home / 4,951.87-7,427.81-1,991.67

Finding the Fourth Proportional to 4,951.87, 7,427.81 and 1,991.67

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Solution

The fourth proportional to 4,951.87, 7,427.81 and 1,991.67 is: 2,987.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951.87 : 7,427.81 = 1,991.67 : x
  2. Step 2: Convert to fraction form
    4,951.87/7,427.81 = 1,991.67/x
  3. Step 3: Cross multiply
    4,951.87x = 7,427.81 × 1,991.67
  4. Step 4: Simplify right side
    4,951.87x = 14,793,746.34
  5. Step 5: Solve for x
    x = 14,793,746.34/4,951.87
  6. Step 6: Final answer
    x = 2,987.51

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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.