Home / 1,675.42-2,512.95-1,309.30

Finding the Fourth Proportional to 1,675.42, 2,512.95 and 1,309.30

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Solution

The fourth proportional to 1,675.42, 2,512.95 and 1,309.30 is: 1,963.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.42 : 2,512.95 = 1,309.30 : x
  2. Step 2: Convert to fraction form
    1,675.42/2,512.95 = 1,309.30/x
  3. Step 3: Cross multiply
    1,675.42x = 2,512.95 × 1,309.30
  4. Step 4: Simplify right side
    1,675.42x = 3,290,205.44
  5. Step 5: Solve for x
    x = 3,290,205.44/1,675.42
  6. Step 6: Final answer
    x = 1,963.81

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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.