Home / 2,176.20-3,269.10-2,118.60

Finding the Fourth Proportional to 2,176.20, 3,269.10 and 2,118.60

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Solution

The fourth proportional to 2,176.20, 3,269.10 and 2,118.60 is: 3,182.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.20 : 3,269.10 = 2,118.60 : x
  2. Step 2: Convert to fraction form
    2,176.20/3,269.10 = 2,118.60/x
  3. Step 3: Cross multiply
    2,176.20x = 3,269.10 × 2,118.60
  4. Step 4: Simplify right side
    2,176.20x = 6,925,915.26
  5. Step 5: Solve for x
    x = 6,925,915.26/2,176.20
  6. Step 6: Final answer
    x = 3,182.57

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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.