Home / 3,988.01-5,981.54-1,066.55

Finding the Fourth Proportional to 3,988.01, 5,981.54 and 1,066.55

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Solution

The fourth proportional to 3,988.01, 5,981.54 and 1,066.55 is: 1,599.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.01 : 5,981.54 = 1,066.55 : x
  2. Step 2: Convert to fraction form
    3,988.01/5,981.54 = 1,066.55/x
  3. Step 3: Cross multiply
    3,988.01x = 5,981.54 × 1,066.55
  4. Step 4: Simplify right side
    3,988.01x = 6,379,576.25
  5. Step 5: Solve for x
    x = 6,379,576.25/3,988.01
  6. Step 6: Final answer
    x = 1,599.69

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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.