Home / 4,929.13-7,390.04-2,980.90

Finding the Fourth Proportional to 4,929.13, 7,390.04 and 2,980.90

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Solution

The fourth proportional to 4,929.13, 7,390.04 and 2,980.90 is: 4,469.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,929.13 : 7,390.04 = 2,980.90 : x
  2. Step 2: Convert to fraction form
    4,929.13/7,390.04 = 2,980.90/x
  3. Step 3: Cross multiply
    4,929.13x = 7,390.04 × 2,980.90
  4. Step 4: Simplify right side
    4,929.13x = 22,028,940.74
  5. Step 5: Solve for x
    x = 22,028,940.74/4,929.13
  6. Step 6: Final answer
    x = 4,469.14

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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.