Home / 3,860.67-5,328.50-2,182.11

Finding the Fourth Proportional to 3,860.67, 5,328.50 and 2,182.11

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Solution

The fourth proportional to 3,860.67, 5,328.50 and 2,182.11 is: 3,011.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.67 : 5,328.50 = 2,182.11 : x
  2. Step 2: Convert to fraction form
    3,860.67/5,328.50 = 2,182.11/x
  3. Step 3: Cross multiply
    3,860.67x = 5,328.50 × 2,182.11
  4. Step 4: Simplify right side
    3,860.67x = 11,627,373.14
  5. Step 5: Solve for x
    x = 11,627,373.14/3,860.67
  6. Step 6: Final answer
    x = 3,011.75

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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.