Home / 3,670.09-5,064.46-2,178.11

Finding the Fourth Proportional to 3,670.09, 5,064.46 and 2,178.11

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Solution

The fourth proportional to 3,670.09, 5,064.46 and 2,178.11 is: 3,005.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.09 : 5,064.46 = 2,178.11 : x
  2. Step 2: Convert to fraction form
    3,670.09/5,064.46 = 2,178.11/x
  3. Step 3: Cross multiply
    3,670.09x = 5,064.46 × 2,178.11
  4. Step 4: Simplify right side
    3,670.09x = 11,030,958.19
  5. Step 5: Solve for x
    x = 11,030,958.19/3,670.09
  6. Step 6: Final answer
    x = 3,005.64

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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.