Home / 2,654.28-3,661.38-2,157.48

Finding the Fourth Proportional to 2,654.28, 3,661.38 and 2,157.48

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Solution

The fourth proportional to 2,654.28, 3,661.38 and 2,157.48 is: 2,976.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654.28 : 3,661.38 = 2,157.48 : x
  2. Step 2: Convert to fraction form
    2,654.28/3,661.38 = 2,157.48/x
  3. Step 3: Cross multiply
    2,654.28x = 3,661.38 × 2,157.48
  4. Step 4: Simplify right side
    2,654.28x = 7,899,354.12
  5. Step 5: Solve for x
    x = 7,899,354.12/2,654.28
  6. Step 6: Final answer
    x = 2,976.08

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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.