Home / 4,980.80-7,467.96-2,385.20

Finding the Fourth Proportional to 4,980.80, 7,467.96 and 2,385.20

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Solution

The fourth proportional to 4,980.80, 7,467.96 and 2,385.20 is: 3,576.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.80 : 7,467.96 = 2,385.20 : x
  2. Step 2: Convert to fraction form
    4,980.80/7,467.96 = 2,385.20/x
  3. Step 3: Cross multiply
    4,980.80x = 7,467.96 × 2,385.20
  4. Step 4: Simplify right side
    4,980.80x = 17,812,578.19
  5. Step 5: Solve for x
    x = 17,812,578.19/4,980.80
  6. Step 6: Final answer
    x = 3,576.25

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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.