Home / 3,921.96-5,877.18-3,803.70

Finding the Fourth Proportional to 3,921.96, 5,877.18 and 3,803.70

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Solution

The fourth proportional to 3,921.96, 5,877.18 and 3,803.70 is: 5,699.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.96 : 5,877.18 = 3,803.70 : x
  2. Step 2: Convert to fraction form
    3,921.96/5,877.18 = 3,803.70/x
  3. Step 3: Cross multiply
    3,921.96x = 5,877.18 × 3,803.70
  4. Step 4: Simplify right side
    3,921.96x = 22,355,029.57
  5. Step 5: Solve for x
    x = 22,355,029.57/3,921.96
  6. Step 6: Final answer
    x = 5,699.96

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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.