Home / 3,471.55-4,789.40-2,142.95

Finding the Fourth Proportional to 3,471.55, 4,789.40 and 2,142.95

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Solution

The fourth proportional to 3,471.55, 4,789.40 and 2,142.95 is: 2,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.55 : 4,789.40 = 2,142.95 : x
  2. Step 2: Convert to fraction form
    3,471.55/4,789.40 = 2,142.95/x
  3. Step 3: Cross multiply
    3,471.55x = 4,789.40 × 2,142.95
  4. Step 4: Simplify right side
    3,471.55x = 10,263,410.07
  5. Step 5: Solve for x
    x = 10,263,410.07/3,471.55
  6. Step 6: Final answer
    x = 2,956.44

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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.