Home / 3,072.24-4,609.64-1,124.64

Finding the Fourth Proportional to 3,072.24, 4,609.64 and 1,124.64

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Solution

The fourth proportional to 3,072.24, 4,609.64 and 1,124.64 is: 1,687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.24 : 4,609.64 = 1,124.64 : x
  2. Step 2: Convert to fraction form
    3,072.24/4,609.64 = 1,124.64/x
  3. Step 3: Cross multiply
    3,072.24x = 4,609.64 × 1,124.64
  4. Step 4: Simplify right side
    3,072.24x = 5,184,185.53
  5. Step 5: Solve for x
    x = 5,184,185.53/3,072.24
  6. Step 6: Final answer
    x = 1,687.43

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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.