Home / 2,555.42-3,833.14-1,689.54

Finding the Fourth Proportional to 2,555.42, 3,833.14 and 1,689.54

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Solution

The fourth proportional to 2,555.42, 3,833.14 and 1,689.54 is: 2,534.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.42 : 3,833.14 = 1,689.54 : x
  2. Step 2: Convert to fraction form
    2,555.42/3,833.14 = 1,689.54/x
  3. Step 3: Cross multiply
    2,555.42x = 3,833.14 × 1,689.54
  4. Step 4: Simplify right side
    2,555.42x = 6,476,243.36
  5. Step 5: Solve for x
    x = 6,476,243.36/2,555.42
  6. Step 6: Final answer
    x = 2,534.32

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1.5x scale

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.