Home / 3,387.79-4,676.06-3,181.27

Finding the Fourth Proportional to 3,387.79, 4,676.06 and 3,181.27

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Solution

The fourth proportional to 3,387.79, 4,676.06 and 3,181.27 is: 4,391.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.79 : 4,676.06 = 3,181.27 : x
  2. Step 2: Convert to fraction form
    3,387.79/4,676.06 = 3,181.27/x
  3. Step 3: Cross multiply
    3,387.79x = 4,676.06 × 3,181.27
  4. Step 4: Simplify right side
    3,387.79x = 14,875,809.40
  5. Step 5: Solve for x
    x = 14,875,809.40/3,387.79
  6. Step 6: Final answer
    x = 4,391.01

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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.