Home / 3,616.43-5,423.54-1,275.89

Finding the Fourth Proportional to 3,616.43, 5,423.54 and 1,275.89

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Solution

The fourth proportional to 3,616.43, 5,423.54 and 1,275.89 is: 1,913.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.43 : 5,423.54 = 1,275.89 : x
  2. Step 2: Convert to fraction form
    3,616.43/5,423.54 = 1,275.89/x
  3. Step 3: Cross multiply
    3,616.43x = 5,423.54 × 1,275.89
  4. Step 4: Simplify right side
    3,616.43x = 6,919,811.61
  5. Step 5: Solve for x
    x = 6,919,811.61/3,616.43
  6. Step 6: Final answer
    x = 1,913.44

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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.