Home / 3,107.10-4,286.53-1,762.43

Finding the Fourth Proportional to 3,107.10, 4,286.53 and 1,762.43

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Solution

The fourth proportional to 3,107.10, 4,286.53 and 1,762.43 is: 2,431.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.10 : 4,286.53 = 1,762.43 : x
  2. Step 2: Convert to fraction form
    3,107.10/4,286.53 = 1,762.43/x
  3. Step 3: Cross multiply
    3,107.10x = 4,286.53 × 1,762.43
  4. Step 4: Simplify right side
    3,107.10x = 7,554,709.07
  5. Step 5: Solve for x
    x = 7,554,709.07/3,107.10
  6. Step 6: Final answer
    x = 2,431.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.