Home / 2,751.21-4,122.72-1,654.29

Finding the Fourth Proportional to 2,751.21, 4,122.72 and 1,654.29

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Solution

The fourth proportional to 2,751.21, 4,122.72 and 1,654.29 is: 2,478.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.21 : 4,122.72 = 1,654.29 : x
  2. Step 2: Convert to fraction form
    2,751.21/4,122.72 = 1,654.29/x
  3. Step 3: Cross multiply
    2,751.21x = 4,122.72 × 1,654.29
  4. Step 4: Simplify right side
    2,751.21x = 6,820,174.47
  5. Step 5: Solve for x
    x = 6,820,174.47/2,751.21
  6. Step 6: Final answer
    x = 2,478.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.