Home / 1,897.28-2,844.53-1,279.45

Finding the Fourth Proportional to 1,897.28, 2,844.53 and 1,279.45

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Solution

The fourth proportional to 1,897.28, 2,844.53 and 1,279.45 is: 1,918.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.28 : 2,844.53 = 1,279.45 : x
  2. Step 2: Convert to fraction form
    1,897.28/2,844.53 = 1,279.45/x
  3. Step 3: Cross multiply
    1,897.28x = 2,844.53 × 1,279.45
  4. Step 4: Simplify right side
    1,897.28x = 3,639,419.69
  5. Step 5: Solve for x
    x = 3,639,419.69/1,897.28
  6. Step 6: Final answer
    x = 1,918.24

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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.