Home / 2,180.08-3,270.70-1,140.60

Finding the Fourth Proportional to 2,180.08, 3,270.70 and 1,140.60

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Solution

The fourth proportional to 2,180.08, 3,270.70 and 1,140.60 is: 1,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.08 : 3,270.70 = 1,140.60 : x
  2. Step 2: Convert to fraction form
    2,180.08/3,270.70 = 1,140.60/x
  3. Step 3: Cross multiply
    2,180.08x = 3,270.70 × 1,140.60
  4. Step 4: Simplify right side
    2,180.08x = 3,730,560.42
  5. Step 5: Solve for x
    x = 3,730,560.42/2,180.08
  6. Step 6: Final answer
    x = 1,711.20

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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.