Home / 3,507.13-5,261.86-1,286.65

Finding the Fourth Proportional to 3,507.13, 5,261.86 and 1,286.65

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Solution

The fourth proportional to 3,507.13, 5,261.86 and 1,286.65 is: 1,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.13 : 5,261.86 = 1,286.65 : x
  2. Step 2: Convert to fraction form
    3,507.13/5,261.86 = 1,286.65/x
  3. Step 3: Cross multiply
    3,507.13x = 5,261.86 × 1,286.65
  4. Step 4: Simplify right side
    3,507.13x = 6,770,180.35
  5. Step 5: Solve for x
    x = 6,770,180.35/3,507.13
  6. Step 6: Final answer
    x = 1,930.40

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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.