Home / 4,911.68-7,370.66-1,791.40

Finding the Fourth Proportional to 4,911.68, 7,370.66 and 1,791.40

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Solution

The fourth proportional to 4,911.68, 7,370.66 and 1,791.40 is: 2,688.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.68 : 7,370.66 = 1,791.40 : x
  2. Step 2: Convert to fraction form
    4,911.68/7,370.66 = 1,791.40/x
  3. Step 3: Cross multiply
    4,911.68x = 7,370.66 × 1,791.40
  4. Step 4: Simplify right side
    4,911.68x = 13,203,800.32
  5. Step 5: Solve for x
    x = 13,203,800.32/4,911.68
  6. Step 6: Final answer
    x = 2,688.25

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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.