Home / 3,914.83-5,402.43-2,146.40

Finding the Fourth Proportional to 3,914.83, 5,402.43 and 2,146.40

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Solution

The fourth proportional to 3,914.83, 5,402.43 and 2,146.40 is: 2,962.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.83 : 5,402.43 = 2,146.40 : x
  2. Step 2: Convert to fraction form
    3,914.83/5,402.43 = 2,146.40/x
  3. Step 3: Cross multiply
    3,914.83x = 5,402.43 × 2,146.40
  4. Step 4: Simplify right side
    3,914.83x = 11,595,775.75
  5. Step 5: Solve for x
    x = 11,595,775.75/3,914.83
  6. Step 6: Final answer
    x = 2,962.01

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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.