Home / 3,278.71-4,525.05-2,020.09

Finding the Fourth Proportional to 3,278.71, 4,525.05 and 2,020.09

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Solution

The fourth proportional to 3,278.71, 4,525.05 and 2,020.09 is: 2,787.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.71 : 4,525.05 = 2,020.09 : x
  2. Step 2: Convert to fraction form
    3,278.71/4,525.05 = 2,020.09/x
  3. Step 3: Cross multiply
    3,278.71x = 4,525.05 × 2,020.09
  4. Step 4: Simplify right side
    3,278.71x = 9,141,008.25
  5. Step 5: Solve for x
    x = 9,141,008.25/3,278.71
  6. Step 6: Final answer
    x = 2,787.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.