Home / 3,419.55-5,120.45-2,929.10

Finding the Fourth Proportional to 3,419.55, 5,120.45 and 2,929.10

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Solution

The fourth proportional to 3,419.55, 5,120.45 and 2,929.10 is: 4,386.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.55 : 5,120.45 = 2,929.10 : x
  2. Step 2: Convert to fraction form
    3,419.55/5,120.45 = 2,929.10/x
  3. Step 3: Cross multiply
    3,419.55x = 5,120.45 × 2,929.10
  4. Step 4: Simplify right side
    3,419.55x = 14,998,310.10
  5. Step 5: Solve for x
    x = 14,998,310.10/3,419.55
  6. Step 6: Final answer
    x = 4,386.05

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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.