Home / 3,991.17-5,987.18-1,528.07

Finding the Fourth Proportional to 3,991.17, 5,987.18 and 1,528.07

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Solution

The fourth proportional to 3,991.17, 5,987.18 and 1,528.07 is: 2,292.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.17 : 5,987.18 = 1,528.07 : x
  2. Step 2: Convert to fraction form
    3,991.17/5,987.18 = 1,528.07/x
  3. Step 3: Cross multiply
    3,991.17x = 5,987.18 × 1,528.07
  4. Step 4: Simplify right side
    3,991.17x = 9,148,848.93
  5. Step 5: Solve for x
    x = 9,148,848.93/3,991.17
  6. Step 6: Final answer
    x = 2,292.27

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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.