Home / 2,576.86-3,871.44-1,654.20

Finding the Fourth Proportional to 2,576.86, 3,871.44 and 1,654.20

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Solution

The fourth proportional to 2,576.86, 3,871.44 and 1,654.20 is: 2,485.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.86 : 3,871.44 = 1,654.20 : x
  2. Step 2: Convert to fraction form
    2,576.86/3,871.44 = 1,654.20/x
  3. Step 3: Cross multiply
    2,576.86x = 3,871.44 × 1,654.20
  4. Step 4: Simplify right side
    2,576.86x = 6,404,136.05
  5. Step 5: Solve for x
    x = 6,404,136.05/2,576.86
  6. Step 6: Final answer
    x = 2,485.25

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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.