Home / 5,419.74-8,134.65-2,135.10

Finding the Fourth Proportional to 5,419.74, 8,134.65 and 2,135.10

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Solution

The fourth proportional to 5,419.74, 8,134.65 and 2,135.10 is: 3,204.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.74 : 8,134.65 = 2,135.10 : x
  2. Step 2: Convert to fraction form
    5,419.74/8,134.65 = 2,135.10/x
  3. Step 3: Cross multiply
    5,419.74x = 8,134.65 × 2,135.10
  4. Step 4: Simplify right side
    5,419.74x = 17,368,291.22
  5. Step 5: Solve for x
    x = 17,368,291.22/5,419.74
  6. Step 6: Final answer
    x = 3,204.64

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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.