Home / 3,529.85-4,871.33-1,936.40

Finding the Fourth Proportional to 3,529.85, 4,871.33 and 1,936.40

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Solution

The fourth proportional to 3,529.85, 4,871.33 and 1,936.40 is: 2,672.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.85 : 4,871.33 = 1,936.40 : x
  2. Step 2: Convert to fraction form
    3,529.85/4,871.33 = 1,936.40/x
  3. Step 3: Cross multiply
    3,529.85x = 4,871.33 × 1,936.40
  4. Step 4: Simplify right side
    3,529.85x = 9,432,833.73
  5. Step 5: Solve for x
    x = 9,432,833.73/3,529.85
  6. Step 6: Final answer
    x = 2,672.30

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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.