Home / 2,999.20-4,499.40-1,052.74

Finding the Fourth Proportional to 2,999.20, 4,499.40 and 1,052.74

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Solution

The fourth proportional to 2,999.20, 4,499.40 and 1,052.74 is: 1,579.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.20 : 4,499.40 = 1,052.74 : x
  2. Step 2: Convert to fraction form
    2,999.20/4,499.40 = 1,052.74/x
  3. Step 3: Cross multiply
    2,999.20x = 4,499.40 × 1,052.74
  4. Step 4: Simplify right side
    2,999.20x = 4,736,698.36
  5. Step 5: Solve for x
    x = 4,736,698.36/2,999.20
  6. Step 6: Final answer
    x = 1,579.32

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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.