Home / 5,198.36-7,798.77-1,688.37

Finding the Fourth Proportional to 5,198.36, 7,798.77 and 1,688.37

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Solution

The fourth proportional to 5,198.36, 7,798.77 and 1,688.37 is: 2,532.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.36 : 7,798.77 = 1,688.37 : x
  2. Step 2: Convert to fraction form
    5,198.36/7,798.77 = 1,688.37/x
  3. Step 3: Cross multiply
    5,198.36x = 7,798.77 × 1,688.37
  4. Step 4: Simplify right side
    5,198.36x = 13,167,232.22
  5. Step 5: Solve for x
    x = 13,167,232.22/5,198.36
  6. Step 6: Final answer
    x = 2,532.96

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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.