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Finding the Fourth Proportional to 2,652.91, 3,661.99 and 2,278.38

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Solution

The fourth proportional to 2,652.91, 3,661.99 and 2,278.38 is: 3,145.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652.91 : 3,661.99 = 2,278.38 : x
  2. Step 2: Convert to fraction form
    2,652.91/3,661.99 = 2,278.38/x
  3. Step 3: Cross multiply
    2,652.91x = 3,661.99 × 2,278.38
  4. Step 4: Simplify right side
    2,652.91x = 8,343,404.78
  5. Step 5: Solve for x
    x = 8,343,404.78/2,652.91
  6. Step 6: Final answer
    x = 3,145.01

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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.