Home / 8,780.33-13,171.10-2,540.09

Finding the Fourth Proportional to 8,780.33, 13,171.10 and 2,540.09

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Solution

The fourth proportional to 8,780.33, 13,171.10 and 2,540.09 is: 3,810.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.33 : 13,171.10 = 2,540.09 : x
  2. Step 2: Convert to fraction form
    8,780.33/13,171.10 = 2,540.09/x
  3. Step 3: Cross multiply
    8,780.33x = 13,171.10 × 2,540.09
  4. Step 4: Simplify right side
    8,780.33x = 33,455,700.84
  5. Step 5: Solve for x
    x = 33,455,700.84/8,780.33
  6. Step 6: Final answer
    x = 3,810.30

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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.