Home / 8,780.88-13,173.08-2,858.16

Finding the Fourth Proportional to 8,780.88, 13,173.08 and 2,858.16

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Solution

The fourth proportional to 8,780.88, 13,173.08 and 2,858.16 is: 4,287.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.88 : 13,173.08 = 2,858.16 : x
  2. Step 2: Convert to fraction form
    8,780.88/13,173.08 = 2,858.16/x
  3. Step 3: Cross multiply
    8,780.88x = 13,173.08 × 2,858.16
  4. Step 4: Simplify right side
    8,780.88x = 37,650,770.33
  5. Step 5: Solve for x
    x = 37,650,770.33/8,780.88
  6. Step 6: Final answer
    x = 4,287.81

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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.