Home / 7,198.56-10,798.76-2,815.45

Finding the Fourth Proportional to 7,198.56, 10,798.76 and 2,815.45

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Solution

The fourth proportional to 7,198.56, 10,798.76 and 2,815.45 is: 4,223.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198.56 : 10,798.76 = 2,815.45 : x
  2. Step 2: Convert to fraction form
    7,198.56/10,798.76 = 2,815.45/x
  3. Step 3: Cross multiply
    7,198.56x = 10,798.76 × 2,815.45
  4. Step 4: Simplify right side
    7,198.56x = 30,403,327.77
  5. Step 5: Solve for x
    x = 30,403,327.77/7,198.56
  6. Step 6: Final answer
    x = 4,223.53

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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.