Home / 4,520.55-6,780.20-1,402.70

Finding the Fourth Proportional to 4,520.55, 6,780.20 and 1,402.70

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Solution

The fourth proportional to 4,520.55, 6,780.20 and 1,402.70 is: 2,103.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,520.55 : 6,780.20 = 1,402.70 : x
  2. Step 2: Convert to fraction form
    4,520.55/6,780.20 = 1,402.70/x
  3. Step 3: Cross multiply
    4,520.55x = 6,780.20 × 1,402.70
  4. Step 4: Simplify right side
    4,520.55x = 9,510,586.54
  5. Step 5: Solve for x
    x = 9,510,586.54/4,520.55
  6. Step 6: Final answer
    x = 2,103.86

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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.