Home / 3,431.18-4,734.98-1,939.06

Finding the Fourth Proportional to 3,431.18, 4,734.98 and 1,939.06

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Solution

The fourth proportional to 3,431.18, 4,734.98 and 1,939.06 is: 2,675.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.18 : 4,734.98 = 1,939.06 : x
  2. Step 2: Convert to fraction form
    3,431.18/4,734.98 = 1,939.06/x
  3. Step 3: Cross multiply
    3,431.18x = 4,734.98 × 1,939.06
  4. Step 4: Simplify right side
    3,431.18x = 9,181,410.32
  5. Step 5: Solve for x
    x = 9,181,410.32/3,431.18
  6. Step 6: Final answer
    x = 2,675.88

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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.