Home / 3,849.30-5,307.66-3,140.37

Finding the Fourth Proportional to 3,849.30, 5,307.66 and 3,140.37

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Solution

The fourth proportional to 3,849.30, 5,307.66 and 3,140.37 is: 4,330.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.30 : 5,307.66 = 3,140.37 : x
  2. Step 2: Convert to fraction form
    3,849.30/5,307.66 = 3,140.37/x
  3. Step 3: Cross multiply
    3,849.30x = 5,307.66 × 3,140.37
  4. Step 4: Simplify right side
    3,849.30x = 16,668,016.23
  5. Step 5: Solve for x
    x = 16,668,016.23/3,849.30
  6. Step 6: Final answer
    x = 4,330.14

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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.