Home / 3,052.80-4,579.20-1,320.21

Finding the Fourth Proportional to 3,052.80, 4,579.20 and 1,320.21

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Solution

The fourth proportional to 3,052.80, 4,579.20 and 1,320.21 is: 1,980.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,052.80 : 4,579.20 = 1,320.21 : x
  2. Step 2: Convert to fraction form
    3,052.80/4,579.20 = 1,320.21/x
  3. Step 3: Cross multiply
    3,052.80x = 4,579.20 × 1,320.21
  4. Step 4: Simplify right side
    3,052.80x = 6,045,505.63
  5. Step 5: Solve for x
    x = 6,045,505.63/3,052.80
  6. Step 6: Final answer
    x = 1,980.32

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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.