Home / 3,138.14-4,705.52-1,057.45

Finding the Fourth Proportional to 3,138.14, 4,705.52 and 1,057.45

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Solution

The fourth proportional to 3,138.14, 4,705.52 and 1,057.45 is: 1,585.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.14 : 4,705.52 = 1,057.45 : x
  2. Step 2: Convert to fraction form
    3,138.14/4,705.52 = 1,057.45/x
  3. Step 3: Cross multiply
    3,138.14x = 4,705.52 × 1,057.45
  4. Step 4: Simplify right side
    3,138.14x = 4,975,852.12
  5. Step 5: Solve for x
    x = 4,975,852.12/3,138.14
  6. Step 6: Final answer
    x = 1,585.61

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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.