Home / 2,922.72-4,379.05-1,934.92

Finding the Fourth Proportional to 2,922.72, 4,379.05 and 1,934.92

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Solution

The fourth proportional to 2,922.72, 4,379.05 and 1,934.92 is: 2,899.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.72 : 4,379.05 = 1,934.92 : x
  2. Step 2: Convert to fraction form
    2,922.72/4,379.05 = 1,934.92/x
  3. Step 3: Cross multiply
    2,922.72x = 4,379.05 × 1,934.92
  4. Step 4: Simplify right side
    2,922.72x = 8,473,111.43
  5. Step 5: Solve for x
    x = 8,473,111.43/2,922.72
  6. Step 6: Final answer
    x = 2,899.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.