Home / 4,097.72-5,654.81-2,419.20

Finding the Fourth Proportional to 4,097.72, 5,654.81 and 2,419.20

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Solution

The fourth proportional to 4,097.72, 5,654.81 and 2,419.20 is: 3,338.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,097.72 : 5,654.81 = 2,419.20 : x
  2. Step 2: Convert to fraction form
    4,097.72/5,654.81 = 2,419.20/x
  3. Step 3: Cross multiply
    4,097.72x = 5,654.81 × 2,419.20
  4. Step 4: Simplify right side
    4,097.72x = 13,680,122.40
  5. Step 5: Solve for x
    x = 13,680,122.40/4,097.72
  6. Step 6: Final answer
    x = 3,338.47

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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.