Home / 3,990.24-5,985.77-1,527.14

Finding the Fourth Proportional to 3,990.24, 5,985.77 and 1,527.14

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Solution

The fourth proportional to 3,990.24, 5,985.77 and 1,527.14 is: 2,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.24 : 5,985.77 = 1,527.14 : x
  2. Step 2: Convert to fraction form
    3,990.24/5,985.77 = 1,527.14/x
  3. Step 3: Cross multiply
    3,990.24x = 5,985.77 × 1,527.14
  4. Step 4: Simplify right side
    3,990.24x = 9,141,071.23
  5. Step 5: Solve for x
    x = 9,141,071.23/3,990.24
  6. Step 6: Final answer
    x = 2,290.86

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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.