Home / 2,683.42-4,023.61-1,121.74

Finding the Fourth Proportional to 2,683.42, 4,023.61 and 1,121.74

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Solution

The fourth proportional to 2,683.42, 4,023.61 and 1,121.74 is: 1,681.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,683.42 : 4,023.61 = 1,121.74 : x
  2. Step 2: Convert to fraction form
    2,683.42/4,023.61 = 1,121.74/x
  3. Step 3: Cross multiply
    2,683.42x = 4,023.61 × 1,121.74
  4. Step 4: Simplify right side
    2,683.42x = 4,513,444.28
  5. Step 5: Solve for x
    x = 4,513,444.28/2,683.42
  6. Step 6: Final answer
    x = 1,681.97

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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.