Home / 2,922.43-4,381.95-1,999.10

Finding the Fourth Proportional to 2,922.43, 4,381.95 and 1,999.10

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Solution

The fourth proportional to 2,922.43, 4,381.95 and 1,999.10 is: 2,997.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.43 : 4,381.95 = 1,999.10 : x
  2. Step 2: Convert to fraction form
    2,922.43/4,381.95 = 1,999.10/x
  3. Step 3: Cross multiply
    2,922.43x = 4,381.95 × 1,999.10
  4. Step 4: Simplify right side
    2,922.43x = 8,759,956.25
  5. Step 5: Solve for x
    x = 8,759,956.25/2,922.43
  6. Step 6: Final answer
    x = 2,997.49

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Double scale
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Similar ratio
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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.