Home / 5,322.88-7,987.29-2,205.19

Finding the Fourth Proportional to 5,322.88, 7,987.29 and 2,205.19

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Solution

The fourth proportional to 5,322.88, 7,987.29 and 2,205.19 is: 3,309.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,322.88 : 7,987.29 = 2,205.19 : x
  2. Step 2: Convert to fraction form
    5,322.88/7,987.29 = 2,205.19/x
  3. Step 3: Cross multiply
    5,322.88x = 7,987.29 × 2,205.19
  4. Step 4: Simplify right side
    5,322.88x = 17,613,492.04
  5. Step 5: Solve for x
    x = 17,613,492.04/5,322.88
  6. Step 6: Final answer
    x = 3,309.02

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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.