Home / 3,320.23-4,980.33-854.84

Finding the Fourth Proportional to 3,320.23, 4,980.33 and 854.84

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Solution

The fourth proportional to 3,320.23, 4,980.33 and 854.84 is: 1,282.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.23 : 4,980.33 = 854.84 : x
  2. Step 2: Convert to fraction form
    3,320.23/4,980.33 = 854.84/x
  3. Step 3: Cross multiply
    3,320.23x = 4,980.33 × 854.84
  4. Step 4: Simplify right side
    3,320.23x = 4,257,385.30
  5. Step 5: Solve for x
    x = 4,257,385.30/3,320.23
  6. Step 6: Final answer
    x = 1,282.26

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1.5x scale

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.