Home / 3,172.24-4,754.40-1,528.48

Finding the Fourth Proportional to 3,172.24, 4,754.40 and 1,528.48

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Solution

The fourth proportional to 3,172.24, 4,754.40 and 1,528.48 is: 2,290.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.24 : 4,754.40 = 1,528.48 : x
  2. Step 2: Convert to fraction form
    3,172.24/4,754.40 = 1,528.48/x
  3. Step 3: Cross multiply
    3,172.24x = 4,754.40 × 1,528.48
  4. Step 4: Simplify right side
    3,172.24x = 7,267,005.31
  5. Step 5: Solve for x
    x = 7,267,005.31/3,172.24
  6. Step 6: Final answer
    x = 2,290.81

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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.