Home / 2,988.09-4,481.53-2,839.90

Finding the Fourth Proportional to 2,988.09, 4,481.53 and 2,839.90

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Solution

The fourth proportional to 2,988.09, 4,481.53 and 2,839.90 is: 4,259.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.09 : 4,481.53 = 2,839.90 : x
  2. Step 2: Convert to fraction form
    2,988.09/4,481.53 = 2,839.90/x
  3. Step 3: Cross multiply
    2,988.09x = 4,481.53 × 2,839.90
  4. Step 4: Simplify right side
    2,988.09x = 12,727,074.64
  5. Step 5: Solve for x
    x = 12,727,074.64/2,988.09
  6. Step 6: Final answer
    x = 4,259.27

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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.