Home / 2,039.20-2,814-1,155.06

Finding the Fourth Proportional to 2,039.20, 2,814 and 1,155.06

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Solution

The fourth proportional to 2,039.20, 2,814 and 1,155.06 is: 1,593.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.20 : 2,814 = 1,155.06 : x
  2. Step 2: Convert to fraction form
    2,039.20/2,814 = 1,155.06/x
  3. Step 3: Cross multiply
    2,039.20x = 2,814 × 1,155.06
  4. Step 4: Simplify right side
    2,039.20x = 3,250,338.84
  5. Step 5: Solve for x
    x = 3,250,338.84/2,039.20
  6. Step 6: Final answer
    x = 1,593.93

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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.