Home / 3,105.40-4,651.42-1,459.48

Finding the Fourth Proportional to 3,105.40, 4,651.42 and 1,459.48

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Solution

The fourth proportional to 3,105.40, 4,651.42 and 1,459.48 is: 2,186.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.40 : 4,651.42 = 1,459.48 : x
  2. Step 2: Convert to fraction form
    3,105.40/4,651.42 = 1,459.48/x
  3. Step 3: Cross multiply
    3,105.40x = 4,651.42 × 1,459.48
  4. Step 4: Simplify right side
    3,105.40x = 6,788,647.16
  5. Step 5: Solve for x
    x = 6,788,647.16/3,105.40
  6. Step 6: Final answer
    x = 2,186.08

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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.