Home / 3,860.87-5,328.09-2,182.23

Finding the Fourth Proportional to 3,860.87, 5,328.09 and 2,182.23

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Solution

The fourth proportional to 3,860.87, 5,328.09 and 2,182.23 is: 3,011.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.87 : 5,328.09 = 2,182.23 : x
  2. Step 2: Convert to fraction form
    3,860.87/5,328.09 = 2,182.23/x
  3. Step 3: Cross multiply
    3,860.87x = 5,328.09 × 2,182.23
  4. Step 4: Simplify right side
    3,860.87x = 11,627,117.84
  5. Step 5: Solve for x
    x = 11,627,117.84/3,860.87
  6. Step 6: Final answer
    x = 3,011.53

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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.