Home / 2,922.96-4,389.66-2,805.51

Finding the Fourth Proportional to 2,922.96, 4,389.66 and 2,805.51

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Solution

The fourth proportional to 2,922.96, 4,389.66 and 2,805.51 is: 4,213.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.96 : 4,389.66 = 2,805.51 : x
  2. Step 2: Convert to fraction form
    2,922.96/4,389.66 = 2,805.51/x
  3. Step 3: Cross multiply
    2,922.96x = 4,389.66 × 2,805.51
  4. Step 4: Simplify right side
    2,922.96x = 12,315,235.03
  5. Step 5: Solve for x
    x = 12,315,235.03/2,922.96
  6. Step 6: Final answer
    x = 4,213.28

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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.