Home / 3,862.85-5,330.66-2,184.20

Finding the Fourth Proportional to 3,862.85, 5,330.66 and 2,184.20

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Solution

The fourth proportional to 3,862.85, 5,330.66 and 2,184.20 is: 3,014.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.85 : 5,330.66 = 2,184.20 : x
  2. Step 2: Convert to fraction form
    3,862.85/5,330.66 = 2,184.20/x
  3. Step 3: Cross multiply
    3,862.85x = 5,330.66 × 2,184.20
  4. Step 4: Simplify right side
    3,862.85x = 11,643,206.38
  5. Step 5: Solve for x
    x = 11,643,206.38/3,862.85
  6. Step 6: Final answer
    x = 3,014.15

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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.