Home / 3,107.85-4,657.64-1,158.09

Finding the Fourth Proportional to 3,107.85, 4,657.64 and 1,158.09

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Solution

The fourth proportional to 3,107.85, 4,657.64 and 1,158.09 is: 1,735.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.85 : 4,657.64 = 1,158.09 : x
  2. Step 2: Convert to fraction form
    3,107.85/4,657.64 = 1,158.09/x
  3. Step 3: Cross multiply
    3,107.85x = 4,657.64 × 1,158.09
  4. Step 4: Simplify right side
    3,107.85x = 5,393,960.52
  5. Step 5: Solve for x
    x = 5,393,960.52/3,107.85
  6. Step 6: Final answer
    x = 1,735.59

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1.5x scale

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.