Home / 5,461.78-8,188.62-2,538.22

Finding the Fourth Proportional to 5,461.78, 8,188.62 and 2,538.22

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Solution

The fourth proportional to 5,461.78, 8,188.62 and 2,538.22 is: 3,805.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,461.78 : 8,188.62 = 2,538.22 : x
  2. Step 2: Convert to fraction form
    5,461.78/8,188.62 = 2,538.22/x
  3. Step 3: Cross multiply
    5,461.78x = 8,188.62 × 2,538.22
  4. Step 4: Simplify right side
    5,461.78x = 20,784,519.06
  5. Step 5: Solve for x
    x = 20,784,519.06/5,461.78
  6. Step 6: Final answer
    x = 3,805.45

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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.