Home / 3,529.14-4,869.21-2,780.77

Finding the Fourth Proportional to 3,529.14, 4,869.21 and 2,780.77

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Solution

The fourth proportional to 3,529.14, 4,869.21 and 2,780.77 is: 3,836.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.14 : 4,869.21 = 2,780.77 : x
  2. Step 2: Convert to fraction form
    3,529.14/4,869.21 = 2,780.77/x
  3. Step 3: Cross multiply
    3,529.14x = 4,869.21 × 2,780.77
  4. Step 4: Simplify right side
    3,529.14x = 13,540,153.09
  5. Step 5: Solve for x
    x = 13,540,153.09/3,529.14
  6. Step 6: Final answer
    x = 3,836.67

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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.