Home / 7,281.48-10,923.24-3,121.56

Finding the Fourth Proportional to 7,281.48, 10,923.24 and 3,121.56

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Solution

The fourth proportional to 7,281.48, 10,923.24 and 3,121.56 is: 4,682.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.48 : 10,923.24 = 3,121.56 : x
  2. Step 2: Convert to fraction form
    7,281.48/10,923.24 = 3,121.56/x
  3. Step 3: Cross multiply
    7,281.48x = 10,923.24 × 3,121.56
  4. Step 4: Simplify right side
    7,281.48x = 34,097,549.05
  5. Step 5: Solve for x
    x = 34,097,549.05/7,281.48
  6. Step 6: Final answer
    x = 4,682.78

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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.