Home / 5,153.44-7,731.28-1,690.56

Finding the Fourth Proportional to 5,153.44, 7,731.28 and 1,690.56

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Solution

The fourth proportional to 5,153.44, 7,731.28 and 1,690.56 is: 2,536.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.44 : 7,731.28 = 1,690.56 : x
  2. Step 2: Convert to fraction form
    5,153.44/7,731.28 = 1,690.56/x
  3. Step 3: Cross multiply
    5,153.44x = 7,731.28 × 1,690.56
  4. Step 4: Simplify right side
    5,153.44x = 13,070,192.72
  5. Step 5: Solve for x
    x = 13,070,192.72/5,153.44
  6. Step 6: Final answer
    x = 2,536.21

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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.