Home / 5,190.36-7,785.50-1,294.74

Finding the Fourth Proportional to 5,190.36, 7,785.50 and 1,294.74

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Solution

The fourth proportional to 5,190.36, 7,785.50 and 1,294.74 is: 1,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.36 : 7,785.50 = 1,294.74 : x
  2. Step 2: Convert to fraction form
    5,190.36/7,785.50 = 1,294.74/x
  3. Step 3: Cross multiply
    5,190.36x = 7,785.50 × 1,294.74
  4. Step 4: Simplify right side
    5,190.36x = 10,080,198.27
  5. Step 5: Solve for x
    x = 10,080,198.27/5,190.36
  6. Step 6: Final answer
    x = 1,942.10

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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.