Home / 2,489.19-3,433.65-1,556.07

Finding the Fourth Proportional to 2,489.19, 3,433.65 and 1,556.07

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Solution

The fourth proportional to 2,489.19, 3,433.65 and 1,556.07 is: 2,146.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.19 : 3,433.65 = 1,556.07 : x
  2. Step 2: Convert to fraction form
    2,489.19/3,433.65 = 1,556.07/x
  3. Step 3: Cross multiply
    2,489.19x = 3,433.65 × 1,556.07
  4. Step 4: Simplify right side
    2,489.19x = 5,342,999.76
  5. Step 5: Solve for x
    x = 5,342,999.76/2,489.19
  6. Step 6: Final answer
    x = 2,146.48

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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.