Home / 5,296.40-7,940.60-2,701.20

Finding the Fourth Proportional to 5,296.40, 7,940.60 and 2,701.20

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Solution

The fourth proportional to 5,296.40, 7,940.60 and 2,701.20 is: 4,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,296.40 : 7,940.60 = 2,701.20 : x
  2. Step 2: Convert to fraction form
    5,296.40/7,940.60 = 2,701.20/x
  3. Step 3: Cross multiply
    5,296.40x = 7,940.60 × 2,701.20
  4. Step 4: Simplify right side
    5,296.40x = 21,449,148.72
  5. Step 5: Solve for x
    x = 21,449,148.72/5,296.40
  6. Step 6: Final answer
    x = 4,049.76

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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.