Home / 4,911.75-7,365.87-2,138.31

Finding the Fourth Proportional to 4,911.75, 7,365.87 and 2,138.31

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Solution

The fourth proportional to 4,911.75, 7,365.87 and 2,138.31 is: 3,206.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.75 : 7,365.87 = 2,138.31 : x
  2. Step 2: Convert to fraction form
    4,911.75/7,365.87 = 2,138.31/x
  3. Step 3: Cross multiply
    4,911.75x = 7,365.87 × 2,138.31
  4. Step 4: Simplify right side
    4,911.75x = 15,750,513.48
  5. Step 5: Solve for x
    x = 15,750,513.48/4,911.75
  6. Step 6: Final answer
    x = 3,206.70

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1.5x scale

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.