Home / 2,685.81-4,029.42-1,124.97

Finding the Fourth Proportional to 2,685.81, 4,029.42 and 1,124.97

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Solution

The fourth proportional to 2,685.81, 4,029.42 and 1,124.97 is: 1,687.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.81 : 4,029.42 = 1,124.97 : x
  2. Step 2: Convert to fraction form
    2,685.81/4,029.42 = 1,124.97/x
  3. Step 3: Cross multiply
    2,685.81x = 4,029.42 × 1,124.97
  4. Step 4: Simplify right side
    2,685.81x = 4,532,976.62
  5. Step 5: Solve for x
    x = 4,532,976.62/2,685.81
  6. Step 6: Final answer
    x = 1,687.75

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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.