Home / 3,943.08-5,441.28-2,174.40

Finding the Fourth Proportional to 3,943.08, 5,441.28 and 2,174.40

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Solution

The fourth proportional to 3,943.08, 5,441.28 and 2,174.40 is: 3,000.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.08 : 5,441.28 = 2,174.40 : x
  2. Step 2: Convert to fraction form
    3,943.08/5,441.28 = 2,174.40/x
  3. Step 3: Cross multiply
    3,943.08x = 5,441.28 × 2,174.40
  4. Step 4: Simplify right side
    3,943.08x = 11,831,519.23
  5. Step 5: Solve for x
    x = 11,831,519.23/3,943.08
  6. Step 6: Final answer
    x = 3,000.58

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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.