Home / 3,520.85-5,278.03-1,672.84

Finding the Fourth Proportional to 3,520.85, 5,278.03 and 1,672.84

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Solution

The fourth proportional to 3,520.85, 5,278.03 and 1,672.84 is: 2,507.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.85 : 5,278.03 = 1,672.84 : x
  2. Step 2: Convert to fraction form
    3,520.85/5,278.03 = 1,672.84/x
  3. Step 3: Cross multiply
    3,520.85x = 5,278.03 × 1,672.84
  4. Step 4: Simplify right side
    3,520.85x = 8,829,299.71
  5. Step 5: Solve for x
    x = 8,829,299.71/3,520.85
  6. Step 6: Final answer
    x = 2,507.72

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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.