Home / 3,670.26-5,065.92-2,178.60

Finding the Fourth Proportional to 3,670.26, 5,065.92 and 2,178.60

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Solution

The fourth proportional to 3,670.26, 5,065.92 and 2,178.60 is: 3,007.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.26 : 5,065.92 = 2,178.60 : x
  2. Step 2: Convert to fraction form
    3,670.26/5,065.92 = 2,178.60/x
  3. Step 3: Cross multiply
    3,670.26x = 5,065.92 × 2,178.60
  4. Step 4: Simplify right side
    3,670.26x = 11,036,613.31
  5. Step 5: Solve for x
    x = 11,036,613.31/3,670.26
  6. Step 6: Final answer
    x = 3,007.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.