Home / 1,675.20-2,515.10-854.03

Finding the Fourth Proportional to 1,675.20, 2,515.10 and 854.03

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Solution

The fourth proportional to 1,675.20, 2,515.10 and 854.03 is: 1,282.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.20 : 2,515.10 = 854.03 : x
  2. Step 2: Convert to fraction form
    1,675.20/2,515.10 = 854.03/x
  3. Step 3: Cross multiply
    1,675.20x = 2,515.10 × 854.03
  4. Step 4: Simplify right side
    1,675.20x = 2,147,970.85
  5. Step 5: Solve for x
    x = 2,147,970.85/1,675.20
  6. Step 6: Final answer
    x = 1,282.22

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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.