Home / 4,398.72-6,076.80-3,871.68

Finding the Fourth Proportional to 4,398.72, 6,076.80 and 3,871.68

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Solution

The fourth proportional to 4,398.72, 6,076.80 and 3,871.68 is: 5,348.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,398.72 : 6,076.80 = 3,871.68 : x
  2. Step 2: Convert to fraction form
    4,398.72/6,076.80 = 3,871.68/x
  3. Step 3: Cross multiply
    4,398.72x = 6,076.80 × 3,871.68
  4. Step 4: Simplify right side
    4,398.72x = 23,527,425.02
  5. Step 5: Solve for x
    x = 23,527,425.02/4,398.72
  6. Step 6: Final answer
    x = 5,348.70

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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.