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Finding the Fourth Proportional to 3,623.68, 5,000.56 and 1,967.68

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Solution

The fourth proportional to 3,623.68, 5,000.56 and 1,967.68 is: 2,715.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.68 : 5,000.56 = 1,967.68 : x
  2. Step 2: Convert to fraction form
    3,623.68/5,000.56 = 1,967.68/x
  3. Step 3: Cross multiply
    3,623.68x = 5,000.56 × 1,967.68
  4. Step 4: Simplify right side
    3,623.68x = 9,839,501.90
  5. Step 5: Solve for x
    x = 9,839,501.90/3,623.68
  6. Step 6: Final answer
    x = 2,715.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.