Home / 3,011.07-4,156.43-2,015.98

Finding the Fourth Proportional to 3,011.07, 4,156.43 and 2,015.98

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Solution

The fourth proportional to 3,011.07, 4,156.43 and 2,015.98 is: 2,782.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.07 : 4,156.43 = 2,015.98 : x
  2. Step 2: Convert to fraction form
    3,011.07/4,156.43 = 2,015.98/x
  3. Step 3: Cross multiply
    3,011.07x = 4,156.43 × 2,015.98
  4. Step 4: Simplify right side
    3,011.07x = 8,379,274.87
  5. Step 5: Solve for x
    x = 8,379,274.87/3,011.07
  6. Step 6: Final answer
    x = 2,782.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.