Home / 5,148.03-7,719.75-1,637.38

Finding the Fourth Proportional to 5,148.03, 7,719.75 and 1,637.38

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Solution

The fourth proportional to 5,148.03, 7,719.75 and 1,637.38 is: 2,455.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.03 : 7,719.75 = 1,637.38 : x
  2. Step 2: Convert to fraction form
    5,148.03/7,719.75 = 1,637.38/x
  3. Step 3: Cross multiply
    5,148.03x = 7,719.75 × 1,637.38
  4. Step 4: Simplify right side
    5,148.03x = 12,640,144.96
  5. Step 5: Solve for x
    x = 12,640,144.96/5,148.03
  6. Step 6: Final answer
    x = 2,455.34

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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.