Home / 3,072.58-4,608.39-1,124.32

Finding the Fourth Proportional to 3,072.58, 4,608.39 and 1,124.32

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Solution

The fourth proportional to 3,072.58, 4,608.39 and 1,124.32 is: 1,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.58 : 4,608.39 = 1,124.32 : x
  2. Step 2: Convert to fraction form
    3,072.58/4,608.39 = 1,124.32/x
  3. Step 3: Cross multiply
    3,072.58x = 4,608.39 × 1,124.32
  4. Step 4: Simplify right side
    3,072.58x = 5,181,305.04
  5. Step 5: Solve for x
    x = 5,181,305.04/3,072.58
  6. Step 6: Final answer
    x = 1,686.30

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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.