Home / 3,855.76-5,318.58-2,283.46

Finding the Fourth Proportional to 3,855.76, 5,318.58 and 2,283.46

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Solution

The fourth proportional to 3,855.76, 5,318.58 and 2,283.46 is: 3,149.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.76 : 5,318.58 = 2,283.46 : x
  2. Step 2: Convert to fraction form
    3,855.76/5,318.58 = 2,283.46/x
  3. Step 3: Cross multiply
    3,855.76x = 5,318.58 × 2,283.46
  4. Step 4: Simplify right side
    3,855.76x = 12,144,764.69
  5. Step 5: Solve for x
    x = 12,144,764.69/3,855.76
  6. Step 6: Final answer
    x = 3,149.77

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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.