Home / 4,520.40-6,780.60-3,791.40

Finding the Fourth Proportional to 4,520.40, 6,780.60 and 3,791.40

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Solution

The fourth proportional to 4,520.40, 6,780.60 and 3,791.40 is: 5,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,520.40 : 6,780.60 = 3,791.40 : x
  2. Step 2: Convert to fraction form
    4,520.40/6,780.60 = 3,791.40/x
  3. Step 3: Cross multiply
    4,520.40x = 6,780.60 × 3,791.40
  4. Step 4: Simplify right side
    4,520.40x = 25,707,966.84
  5. Step 5: Solve for x
    x = 25,707,966.84/4,520.40
  6. Step 6: Final answer
    x = 5,687.10

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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.