Home / 3,801.49-5,245.07-2,309.42

Finding the Fourth Proportional to 3,801.49, 5,245.07 and 2,309.42

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Solution

The fourth proportional to 3,801.49, 5,245.07 and 2,309.42 is: 3,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.49 : 5,245.07 = 2,309.42 : x
  2. Step 2: Convert to fraction form
    3,801.49/5,245.07 = 2,309.42/x
  3. Step 3: Cross multiply
    3,801.49x = 5,245.07 × 2,309.42
  4. Step 4: Simplify right side
    3,801.49x = 12,113,071.12
  5. Step 5: Solve for x
    x = 12,113,071.12/3,801.49
  6. Step 6: Final answer
    x = 3,186.40

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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.