Home / 3,431.30-4,734.79-2,015.01

Finding the Fourth Proportional to 3,431.30, 4,734.79 and 2,015.01

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Solution

The fourth proportional to 3,431.30, 4,734.79 and 2,015.01 is: 2,780.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.30 : 4,734.79 = 2,015.01 : x
  2. Step 2: Convert to fraction form
    3,431.30/4,734.79 = 2,015.01/x
  3. Step 3: Cross multiply
    3,431.30x = 4,734.79 × 2,015.01
  4. Step 4: Simplify right side
    3,431.30x = 9,540,644.16
  5. Step 5: Solve for x
    x = 9,540,644.16/3,431.30
  6. Step 6: Final answer
    x = 2,780.48

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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.