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Finding the Fourth Proportional to 3,988.04, 5,981.02 and 1,679.08

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Solution

The fourth proportional to 3,988.04, 5,981.02 and 1,679.08 is: 2,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.04 : 5,981.02 = 1,679.08 : x
  2. Step 2: Convert to fraction form
    3,988.04/5,981.02 = 1,679.08/x
  3. Step 3: Cross multiply
    3,988.04x = 5,981.02 × 1,679.08
  4. Step 4: Simplify right side
    3,988.04x = 10,042,611.06
  5. Step 5: Solve for x
    x = 10,042,611.06/3,988.04
  6. Step 6: Final answer
    x = 2,518.18

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1.5x scale

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.