Home / 1,984.30-2,974.35-1,439.03

Finding the Fourth Proportional to 1,984.30, 2,974.35 and 1,439.03

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Solution

The fourth proportional to 1,984.30, 2,974.35 and 1,439.03 is: 2,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.30 : 2,974.35 = 1,439.03 : x
  2. Step 2: Convert to fraction form
    1,984.30/2,974.35 = 1,439.03/x
  3. Step 3: Cross multiply
    1,984.30x = 2,974.35 × 1,439.03
  4. Step 4: Simplify right side
    1,984.30x = 4,280,178.88
  5. Step 5: Solve for x
    x = 4,280,178.88/1,984.30
  6. Step 6: Final answer
    x = 2,157.02

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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.