Home / 3,326.50-4,987.02-1,380.10

Finding the Fourth Proportional to 3,326.50, 4,987.02 and 1,380.10

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Solution

The fourth proportional to 3,326.50, 4,987.02 and 1,380.10 is: 2,069.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.50 : 4,987.02 = 1,380.10 : x
  2. Step 2: Convert to fraction form
    3,326.50/4,987.02 = 1,380.10/x
  3. Step 3: Cross multiply
    3,326.50x = 4,987.02 × 1,380.10
  4. Step 4: Simplify right side
    3,326.50x = 6,882,586.30
  5. Step 5: Solve for x
    x = 6,882,586.30/3,326.50
  6. Step 6: Final answer
    x = 2,069.02

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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.