Home / 3,988.24-5,982.40-1,066.96

Finding the Fourth Proportional to 3,988.24, 5,982.40 and 1,066.96

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Solution

The fourth proportional to 3,988.24, 5,982.40 and 1,066.96 is: 1,600.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.24 : 5,982.40 = 1,066.96 : x
  2. Step 2: Convert to fraction form
    3,988.24/5,982.40 = 1,066.96/x
  3. Step 3: Cross multiply
    3,988.24x = 5,982.40 × 1,066.96
  4. Step 4: Simplify right side
    3,988.24x = 6,382,981.50
  5. Step 5: Solve for x
    x = 6,382,981.50/3,988.24
  6. Step 6: Final answer
    x = 1,600.45

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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.