Home / 3,320.68-4,984.80-1,679.08

Finding the Fourth Proportional to 3,320.68, 4,984.80 and 1,679.08

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Solution

The fourth proportional to 3,320.68, 4,984.80 and 1,679.08 is: 2,520.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.68 : 4,984.80 = 1,679.08 : x
  2. Step 2: Convert to fraction form
    3,320.68/4,984.80 = 1,679.08/x
  3. Step 3: Cross multiply
    3,320.68x = 4,984.80 × 1,679.08
  4. Step 4: Simplify right side
    3,320.68x = 8,369,877.98
  5. Step 5: Solve for x
    x = 8,369,877.98/3,320.68
  6. Step 6: Final answer
    x = 2,520.53

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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.