Home / 3,454.96-4,770.30-2,129.08

Finding the Fourth Proportional to 3,454.96, 4,770.30 and 2,129.08

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Solution

The fourth proportional to 3,454.96, 4,770.30 and 2,129.08 is: 2,939.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454.96 : 4,770.30 = 2,129.08 : x
  2. Step 2: Convert to fraction form
    3,454.96/4,770.30 = 2,129.08/x
  3. Step 3: Cross multiply
    3,454.96x = 4,770.30 × 2,129.08
  4. Step 4: Simplify right side
    3,454.96x = 10,156,350.32
  5. Step 5: Solve for x
    x = 10,156,350.32/3,454.96
  6. Step 6: Final answer
    x = 2,939.64

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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.