Home / 4,803.50-6,625.40-3,121.77

Finding the Fourth Proportional to 4,803.50, 6,625.40 and 3,121.77

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Solution

The fourth proportional to 4,803.50, 6,625.40 and 3,121.77 is: 4,305.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,803.50 : 6,625.40 = 3,121.77 : x
  2. Step 2: Convert to fraction form
    4,803.50/6,625.40 = 3,121.77/x
  3. Step 3: Cross multiply
    4,803.50x = 6,625.40 × 3,121.77
  4. Step 4: Simplify right side
    4,803.50x = 20,682,984.19
  5. Step 5: Solve for x
    x = 20,682,984.19/4,803.50
  6. Step 6: Final answer
    x = 4,305.81

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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.