Home / 2,956.74-4,074.68-2,115.98

Finding the Fourth Proportional to 2,956.74, 4,074.68 and 2,115.98

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Solution

The fourth proportional to 2,956.74, 4,074.68 and 2,115.98 is: 2,916.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.74 : 4,074.68 = 2,115.98 : x
  2. Step 2: Convert to fraction form
    2,956.74/4,074.68 = 2,115.98/x
  3. Step 3: Cross multiply
    2,956.74x = 4,074.68 × 2,115.98
  4. Step 4: Simplify right side
    2,956.74x = 8,621,941.39
  5. Step 5: Solve for x
    x = 8,621,941.39/2,956.74
  6. Step 6: Final answer
    x = 2,916.03

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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.