Home / 4,548.80-6,279-2,871.30

Finding the Fourth Proportional to 4,548.80, 6,279 and 2,871.30

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Solution

The fourth proportional to 4,548.80, 6,279 and 2,871.30 is: 3,963.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,548.80 : 6,279 = 2,871.30 : x
  2. Step 2: Convert to fraction form
    4,548.80/6,279 = 2,871.30/x
  3. Step 3: Cross multiply
    4,548.80x = 6,279 × 2,871.30
  4. Step 4: Simplify right side
    4,548.80x = 18,028,892.70
  5. Step 5: Solve for x
    x = 18,028,892.70/4,548.80
  6. Step 6: Final answer
    x = 3,963.44

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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.