Home / 3,591.40-4,956.24-2,100.40

Finding the Fourth Proportional to 3,591.40, 4,956.24 and 2,100.40

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Solution

The fourth proportional to 3,591.40, 4,956.24 and 2,100.40 is: 2,898.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.40 : 4,956.24 = 2,100.40 : x
  2. Step 2: Convert to fraction form
    3,591.40/4,956.24 = 2,100.40/x
  3. Step 3: Cross multiply
    3,591.40x = 4,956.24 × 2,100.40
  4. Step 4: Simplify right side
    3,591.40x = 10,410,086.50
  5. Step 5: Solve for x
    x = 10,410,086.50/3,591.40
  6. Step 6: Final answer
    x = 2,898.62

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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.