Home / 3,107.39-4,661.08-2,130.53

Finding the Fourth Proportional to 3,107.39, 4,661.08 and 2,130.53

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Solution

The fourth proportional to 3,107.39, 4,661.08 and 2,130.53 is: 3,195.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.39 : 4,661.08 = 2,130.53 : x
  2. Step 2: Convert to fraction form
    3,107.39/4,661.08 = 2,130.53/x
  3. Step 3: Cross multiply
    3,107.39x = 4,661.08 × 2,130.53
  4. Step 4: Simplify right side
    3,107.39x = 9,930,536.81
  5. Step 5: Solve for x
    x = 9,930,536.81/3,107.39
  6. Step 6: Final answer
    x = 3,195.79

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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.