Home / 3,654.79-5,043.58-1,976.20

Finding the Fourth Proportional to 3,654.79, 5,043.58 and 1,976.20

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Solution

The fourth proportional to 3,654.79, 5,043.58 and 1,976.20 is: 2,727.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.79 : 5,043.58 = 1,976.20 : x
  2. Step 2: Convert to fraction form
    3,654.79/5,043.58 = 1,976.20/x
  3. Step 3: Cross multiply
    3,654.79x = 5,043.58 × 1,976.20
  4. Step 4: Simplify right side
    3,654.79x = 9,967,122.80
  5. Step 5: Solve for x
    x = 9,967,122.80/3,654.79
  6. Step 6: Final answer
    x = 2,727.14

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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.