Home / 2,984.30-4,471.08-2,808.60

Finding the Fourth Proportional to 2,984.30, 4,471.08 and 2,808.60

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Solution

The fourth proportional to 2,984.30, 4,471.08 and 2,808.60 is: 4,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.30 : 4,471.08 = 2,808.60 : x
  2. Step 2: Convert to fraction form
    2,984.30/4,471.08 = 2,808.60/x
  3. Step 3: Cross multiply
    2,984.30x = 4,471.08 × 2,808.60
  4. Step 4: Simplify right side
    2,984.30x = 12,557,475.29
  5. Step 5: Solve for x
    x = 12,557,475.29/2,984.30
  6. Step 6: Final answer
    x = 4,207.85

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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.