Home / 3,419.12-4,718.52-2,239.28

Finding the Fourth Proportional to 3,419.12, 4,718.52 and 2,239.28

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Solution

The fourth proportional to 3,419.12, 4,718.52 and 2,239.28 is: 3,090.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.12 : 4,718.52 = 2,239.28 : x
  2. Step 2: Convert to fraction form
    3,419.12/4,718.52 = 2,239.28/x
  3. Step 3: Cross multiply
    3,419.12x = 4,718.52 × 2,239.28
  4. Step 4: Simplify right side
    3,419.12x = 10,566,087.47
  5. Step 5: Solve for x
    x = 10,566,087.47/3,419.12
  6. Step 6: Final answer
    x = 3,090.29

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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.