Home / 5,518.12-7,614.33-3,280.09

Finding the Fourth Proportional to 5,518.12, 7,614.33 and 3,280.09

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Solution

The fourth proportional to 5,518.12, 7,614.33 and 3,280.09 is: 4,526.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.12 : 7,614.33 = 3,280.09 : x
  2. Step 2: Convert to fraction form
    5,518.12/7,614.33 = 3,280.09/x
  3. Step 3: Cross multiply
    5,518.12x = 7,614.33 × 3,280.09
  4. Step 4: Simplify right side
    5,518.12x = 24,975,687.69
  5. Step 5: Solve for x
    x = 24,975,687.69/5,518.12
  6. Step 6: Final answer
    x = 4,526.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.