Home / 2,145.39-3,218.08-2,040.44

Finding the Fourth Proportional to 2,145.39, 3,218.08 and 2,040.44

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Solution

The fourth proportional to 2,145.39, 3,218.08 and 2,040.44 is: 3,060.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.39 : 3,218.08 = 2,040.44 : x
  2. Step 2: Convert to fraction form
    2,145.39/3,218.08 = 2,040.44/x
  3. Step 3: Cross multiply
    2,145.39x = 3,218.08 × 2,040.44
  4. Step 4: Simplify right side
    2,145.39x = 6,566,299.89
  5. Step 5: Solve for x
    x = 6,566,299.89/2,145.39
  6. Step 6: Final answer
    x = 3,060.66

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Similar ratio
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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.