Home / 1,990.14-2,746.44-1,150.81

Finding the Fourth Proportional to 1,990.14, 2,746.44 and 1,150.81

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Solution

The fourth proportional to 1,990.14, 2,746.44 and 1,150.81 is: 1,588.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990.14 : 2,746.44 = 1,150.81 : x
  2. Step 2: Convert to fraction form
    1,990.14/2,746.44 = 1,150.81/x
  3. Step 3: Cross multiply
    1,990.14x = 2,746.44 × 1,150.81
  4. Step 4: Simplify right side
    1,990.14x = 3,160,630.62
  5. Step 5: Solve for x
    x = 3,160,630.62/1,990.14
  6. Step 6: Final answer
    x = 1,588.14

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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.