Home / 1,743.62-2,407.28-1,212.35

Finding the Fourth Proportional to 1,743.62, 2,407.28 and 1,212.35

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Solution

The fourth proportional to 1,743.62, 2,407.28 and 1,212.35 is: 1,673.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743.62 : 2,407.28 = 1,212.35 : x
  2. Step 2: Convert to fraction form
    1,743.62/2,407.28 = 1,212.35/x
  3. Step 3: Cross multiply
    1,743.62x = 2,407.28 × 1,212.35
  4. Step 4: Simplify right side
    1,743.62x = 2,918,447.81
  5. Step 5: Solve for x
    x = 2,918,447.81/1,743.62
  6. Step 6: Final answer
    x = 1,673.79

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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.