Home / 1,644.86-2,468.04-1,215.56

Finding the Fourth Proportional to 1,644.86, 2,468.04 and 1,215.56

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Solution

The fourth proportional to 1,644.86, 2,468.04 and 1,215.56 is: 1,823.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.86 : 2,468.04 = 1,215.56 : x
  2. Step 2: Convert to fraction form
    1,644.86/2,468.04 = 1,215.56/x
  3. Step 3: Cross multiply
    1,644.86x = 2,468.04 × 1,215.56
  4. Step 4: Simplify right side
    1,644.86x = 3,000,050.70
  5. Step 5: Solve for x
    x = 3,000,050.70/1,644.86
  6. Step 6: Final answer
    x = 1,823.89

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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.