Home / 3,515.04-4,851.36-2,189.04

Finding the Fourth Proportional to 3,515.04, 4,851.36 and 2,189.04

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Solution

The fourth proportional to 3,515.04, 4,851.36 and 2,189.04 is: 3,021.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.04 : 4,851.36 = 2,189.04 : x
  2. Step 2: Convert to fraction form
    3,515.04/4,851.36 = 2,189.04/x
  3. Step 3: Cross multiply
    3,515.04x = 4,851.36 × 2,189.04
  4. Step 4: Simplify right side
    3,515.04x = 10,619,821.09
  5. Step 5: Solve for x
    x = 10,619,821.09/3,515.04
  6. Step 6: Final answer
    x = 3,021.25

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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.