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Finding the Fourth Proportional to 2,683.30, 4,024.80 and 834.40

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Solution

The fourth proportional to 2,683.30, 4,024.80 and 834.40 is: 1,251.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,683.30 : 4,024.80 = 834.40 : x
  2. Step 2: Convert to fraction form
    2,683.30/4,024.80 = 834.40/x
  3. Step 3: Cross multiply
    2,683.30x = 4,024.80 × 834.40
  4. Step 4: Simplify right side
    2,683.30x = 3,358,293.12
  5. Step 5: Solve for x
    x = 3,358,293.12/2,683.30
  6. Step 6: Final answer
    x = 1,251.55

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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.