Home / 3,021.87-4,530.81-1,458.78

Finding the Fourth Proportional to 3,021.87, 4,530.81 and 1,458.78

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Solution

The fourth proportional to 3,021.87, 4,530.81 and 1,458.78 is: 2,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.87 : 4,530.81 = 1,458.78 : x
  2. Step 2: Convert to fraction form
    3,021.87/4,530.81 = 1,458.78/x
  3. Step 3: Cross multiply
    3,021.87x = 4,530.81 × 1,458.78
  4. Step 4: Simplify right side
    3,021.87x = 6,609,455.01
  5. Step 5: Solve for x
    x = 6,609,455.01/3,021.87
  6. Step 6: Final answer
    x = 2,187.21

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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.