Home / 3,320.72-4,984.68-2,807.08

Finding the Fourth Proportional to 3,320.72, 4,984.68 and 2,807.08

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Solution

The fourth proportional to 3,320.72, 4,984.68 and 2,807.08 is: 4,213.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.72 : 4,984.68 = 2,807.08 : x
  2. Step 2: Convert to fraction form
    3,320.72/4,984.68 = 2,807.08/x
  3. Step 3: Cross multiply
    3,320.72x = 4,984.68 × 2,807.08
  4. Step 4: Simplify right side
    3,320.72x = 13,992,395.53
  5. Step 5: Solve for x
    x = 13,992,395.53/3,320.72
  6. Step 6: Final answer
    x = 4,213.66

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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.