Home / 2,974.08-4,429.68-2,817.92

Finding the Fourth Proportional to 2,974.08, 4,429.68 and 2,817.92

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Solution

The fourth proportional to 2,974.08, 4,429.68 and 2,817.92 is: 4,197.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.08 : 4,429.68 = 2,817.92 : x
  2. Step 2: Convert to fraction form
    2,974.08/4,429.68 = 2,817.92/x
  3. Step 3: Cross multiply
    2,974.08x = 4,429.68 × 2,817.92
  4. Step 4: Simplify right side
    2,974.08x = 12,482,483.87
  5. Step 5: Solve for x
    x = 12,482,483.87/2,974.08
  6. Step 6: Final answer
    x = 4,197.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.