Home / 4,919.04-7,384.99-2,921.38

Finding the Fourth Proportional to 4,919.04, 7,384.99 and 2,921.38

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Solution

The fourth proportional to 4,919.04, 7,384.99 and 2,921.38 is: 4,385.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.04 : 7,384.99 = 2,921.38 : x
  2. Step 2: Convert to fraction form
    4,919.04/7,384.99 = 2,921.38/x
  3. Step 3: Cross multiply
    4,919.04x = 7,384.99 × 2,921.38
  4. Step 4: Simplify right side
    4,919.04x = 21,574,362.09
  5. Step 5: Solve for x
    x = 21,574,362.09/4,919.04
  6. Step 6: Final answer
    x = 4,385.89

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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.