Home / 2,748.04-4,122.54-1,209

Finding the Fourth Proportional to 2,748.04, 4,122.54 and 1,209

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Solution

The fourth proportional to 2,748.04, 4,122.54 and 1,209 is: 1,813.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.04 : 4,122.54 = 1,209 : x
  2. Step 2: Convert to fraction form
    2,748.04/4,122.54 = 1,209/x
  3. Step 3: Cross multiply
    2,748.04x = 4,122.54 × 1,209
  4. Step 4: Simplify right side
    2,748.04x = 4,984,150.86
  5. Step 5: Solve for x
    x = 4,984,150.86/2,748.04
  6. Step 6: Final answer
    x = 1,813.71

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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.