Home / 3,019.90-4,530.71-1,072.30

Finding the Fourth Proportional to 3,019.90, 4,530.71 and 1,072.30

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Solution

The fourth proportional to 3,019.90, 4,530.71 and 1,072.30 is: 1,608.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.90 : 4,530.71 = 1,072.30 : x
  2. Step 2: Convert to fraction form
    3,019.90/4,530.71 = 1,072.30/x
  3. Step 3: Cross multiply
    3,019.90x = 4,530.71 × 1,072.30
  4. Step 4: Simplify right side
    3,019.90x = 4,858,280.33
  5. Step 5: Solve for x
    x = 4,858,280.33/3,019.90
  6. Step 6: Final answer
    x = 1,608.76

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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.