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Finding the Fourth Proportional to 2,256.35, 3,384.09 and 613.04

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Solution

The fourth proportional to 2,256.35, 3,384.09 and 613.04 is: 919.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.35 : 3,384.09 = 613.04 : x
  2. Step 2: Convert to fraction form
    2,256.35/3,384.09 = 613.04/x
  3. Step 3: Cross multiply
    2,256.35x = 3,384.09 × 613.04
  4. Step 4: Simplify right side
    2,256.35x = 2,074,565.61
  5. Step 5: Solve for x
    x = 2,074,565.61/2,256.35
  6. Step 6: Final answer
    x = 919.44

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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.