Home / 7,170.70-10,756.32-1,976.98

Finding the Fourth Proportional to 7,170.70, 10,756.32 and 1,976.98

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Solution

The fourth proportional to 7,170.70, 10,756.32 and 1,976.98 is: 2,965.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.70 : 10,756.32 = 1,976.98 : x
  2. Step 2: Convert to fraction form
    7,170.70/10,756.32 = 1,976.98/x
  3. Step 3: Cross multiply
    7,170.70x = 10,756.32 × 1,976.98
  4. Step 4: Simplify right side
    7,170.70x = 21,265,029.51
  5. Step 5: Solve for x
    x = 21,265,029.51/7,170.70
  6. Step 6: Final answer
    x = 2,965.54

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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.