Home / 3,075.90-4,615.68-1,227.90

Finding the Fourth Proportional to 3,075.90, 4,615.68 and 1,227.90

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Solution

The fourth proportional to 3,075.90, 4,615.68 and 1,227.90 is: 1,842.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.90 : 4,615.68 = 1,227.90 : x
  2. Step 2: Convert to fraction form
    3,075.90/4,615.68 = 1,227.90/x
  3. Step 3: Cross multiply
    3,075.90x = 4,615.68 × 1,227.90
  4. Step 4: Simplify right side
    3,075.90x = 5,667,593.47
  5. Step 5: Solve for x
    x = 5,667,593.47/3,075.90
  6. Step 6: Final answer
    x = 1,842.58

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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.