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Finding the Fourth Proportional to 3,487.50, 4,812.66 and 1,995.66

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Solution

The fourth proportional to 3,487.50, 4,812.66 and 1,995.66 is: 2,753.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.50 : 4,812.66 = 1,995.66 : x
  2. Step 2: Convert to fraction form
    3,487.50/4,812.66 = 1,995.66/x
  3. Step 3: Cross multiply
    3,487.50x = 4,812.66 × 1,995.66
  4. Step 4: Simplify right side
    3,487.50x = 9,604,433.06
  5. Step 5: Solve for x
    x = 9,604,433.06/3,487.50
  6. Step 6: Final answer
    x = 2,753.96

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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.