Home / 2,976.28-4,457.12-1,999.42

Finding the Fourth Proportional to 2,976.28, 4,457.12 and 1,999.42

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Solution

The fourth proportional to 2,976.28, 4,457.12 and 1,999.42 is: 2,994.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.28 : 4,457.12 = 1,999.42 : x
  2. Step 2: Convert to fraction form
    2,976.28/4,457.12 = 1,999.42/x
  3. Step 3: Cross multiply
    2,976.28x = 4,457.12 × 1,999.42
  4. Step 4: Simplify right side
    2,976.28x = 8,911,654.87
  5. Step 5: Solve for x
    x = 8,911,654.87/2,976.28
  6. Step 6: Final answer
    x = 2,994.23

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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.