Home / 2,861.60-3,956.23-2,114.38

Finding the Fourth Proportional to 2,861.60, 3,956.23 and 2,114.38

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Solution

The fourth proportional to 2,861.60, 3,956.23 and 2,114.38 is: 2,923.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.60 : 3,956.23 = 2,114.38 : x
  2. Step 2: Convert to fraction form
    2,861.60/3,956.23 = 2,114.38/x
  3. Step 3: Cross multiply
    2,861.60x = 3,956.23 × 2,114.38
  4. Step 4: Simplify right side
    2,861.60x = 8,364,973.59
  5. Step 5: Solve for x
    x = 8,364,973.59/2,861.60
  6. Step 6: Final answer
    x = 2,923.18

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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.