Home / 4,520.28-6,780.47-2,179.74

Finding the Fourth Proportional to 4,520.28, 6,780.47 and 2,179.74

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Solution

The fourth proportional to 4,520.28, 6,780.47 and 2,179.74 is: 3,269.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,520.28 : 6,780.47 = 2,179.74 : x
  2. Step 2: Convert to fraction form
    4,520.28/6,780.47 = 2,179.74/x
  3. Step 3: Cross multiply
    4,520.28x = 6,780.47 × 2,179.74
  4. Step 4: Simplify right side
    4,520.28x = 14,779,650.78
  5. Step 5: Solve for x
    x = 14,779,650.78/4,520.28
  6. Step 6: Final answer
    x = 3,269.63

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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.