Home / 3,988.15-5,981.77-1,066.69

Finding the Fourth Proportional to 3,988.15, 5,981.77 and 1,066.69

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Solution

The fourth proportional to 3,988.15, 5,981.77 and 1,066.69 is: 1,599.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.15 : 5,981.77 = 1,066.69 : x
  2. Step 2: Convert to fraction form
    3,988.15/5,981.77 = 1,066.69/x
  3. Step 3: Cross multiply
    3,988.15x = 5,981.77 × 1,066.69
  4. Step 4: Simplify right side
    3,988.15x = 6,380,664.33
  5. Step 5: Solve for x
    x = 6,380,664.33/3,988.15
  6. Step 6: Final answer
    x = 1,599.91

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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.