Home / 1,976.55-2,967.99-1,284.90

Finding the Fourth Proportional to 1,976.55, 2,967.99 and 1,284.90

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Solution

The fourth proportional to 1,976.55, 2,967.99 and 1,284.90 is: 1,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.55 : 2,967.99 = 1,284.90 : x
  2. Step 2: Convert to fraction form
    1,976.55/2,967.99 = 1,284.90/x
  3. Step 3: Cross multiply
    1,976.55x = 2,967.99 × 1,284.90
  4. Step 4: Simplify right side
    1,976.55x = 3,813,570.35
  5. Step 5: Solve for x
    x = 3,813,570.35/1,976.55
  6. Step 6: Final answer
    x = 1,929.41

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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.