Home / 2,015.92-2,780.58-1,448.28

Finding the Fourth Proportional to 2,015.92, 2,780.58 and 1,448.28

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Solution

The fourth proportional to 2,015.92, 2,780.58 and 1,448.28 is: 1,997.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.92 : 2,780.58 = 1,448.28 : x
  2. Step 2: Convert to fraction form
    2,015.92/2,780.58 = 1,448.28/x
  3. Step 3: Cross multiply
    2,015.92x = 2,780.58 × 1,448.28
  4. Step 4: Simplify right side
    2,015.92x = 4,027,058.40
  5. Step 5: Solve for x
    x = 4,027,058.40/2,015.92
  6. Step 6: Final answer
    x = 1,997.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.