Home / 1,975.82-2,963.49-1,325.18

Finding the Fourth Proportional to 1,975.82, 2,963.49 and 1,325.18

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Solution

The fourth proportional to 1,975.82, 2,963.49 and 1,325.18 is: 1,987.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.82 : 2,963.49 = 1,325.18 : x
  2. Step 2: Convert to fraction form
    1,975.82/2,963.49 = 1,325.18/x
  3. Step 3: Cross multiply
    1,975.82x = 2,963.49 × 1,325.18
  4. Step 4: Simplify right side
    1,975.82x = 3,927,142.86
  5. Step 5: Solve for x
    x = 3,927,142.86/1,975.82
  6. Step 6: Final answer
    x = 1,987.61

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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.