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Finding the Fourth Proportional to 3,991.71, 5,987.73 and 1,526.71

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Solution

The fourth proportional to 3,991.71, 5,987.73 and 1,526.71 is: 2,290.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.71 : 5,987.73 = 1,526.71 : x
  2. Step 2: Convert to fraction form
    3,991.71/5,987.73 = 1,526.71/x
  3. Step 3: Cross multiply
    3,991.71x = 5,987.73 × 1,526.71
  4. Step 4: Simplify right side
    3,991.71x = 9,141,527.27
  5. Step 5: Solve for x
    x = 9,141,527.27/3,991.71
  6. Step 6: Final answer
    x = 2,290.13

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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.