Home / 2,973.20-4,469.40-2,742.80

Finding the Fourth Proportional to 2,973.20, 4,469.40 and 2,742.80

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Solution

The fourth proportional to 2,973.20, 4,469.40 and 2,742.80 is: 4,123.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.20 : 4,469.40 = 2,742.80 : x
  2. Step 2: Convert to fraction form
    2,973.20/4,469.40 = 2,742.80/x
  3. Step 3: Cross multiply
    2,973.20x = 4,469.40 × 2,742.80
  4. Step 4: Simplify right side
    2,973.20x = 12,258,670.32
  5. Step 5: Solve for x
    x = 12,258,670.32/2,973.20
  6. Step 6: Final answer
    x = 4,123.06

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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.