Home / 2,489.54-3,434.14-1,556.42

Finding the Fourth Proportional to 2,489.54, 3,434.14 and 1,556.42

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Solution

The fourth proportional to 2,489.54, 3,434.14 and 1,556.42 is: 2,146.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.54 : 3,434.14 = 1,556.42 : x
  2. Step 2: Convert to fraction form
    2,489.54/3,434.14 = 1,556.42/x
  3. Step 3: Cross multiply
    2,489.54x = 3,434.14 × 1,556.42
  4. Step 4: Simplify right side
    2,489.54x = 5,344,964.18
  5. Step 5: Solve for x
    x = 5,344,964.18/2,489.54
  6. Step 6: Final answer
    x = 2,146.97

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1.5x scale

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.