Home / 5,198.08-7,798.14-1,688.98

Finding the Fourth Proportional to 5,198.08, 7,798.14 and 1,688.98

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Solution

The fourth proportional to 5,198.08, 7,798.14 and 1,688.98 is: 2,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.08 : 7,798.14 = 1,688.98 : x
  2. Step 2: Convert to fraction form
    5,198.08/7,798.14 = 1,688.98/x
  3. Step 3: Cross multiply
    5,198.08x = 7,798.14 × 1,688.98
  4. Step 4: Simplify right side
    5,198.08x = 13,170,902.50
  5. Step 5: Solve for x
    x = 13,170,902.50/5,198.08
  6. Step 6: Final answer
    x = 2,533.80

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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.