Home / 4,270.78-6,401.79-1,637.58

Finding the Fourth Proportional to 4,270.78, 6,401.79 and 1,637.58

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Solution

The fourth proportional to 4,270.78, 6,401.79 and 1,637.58 is: 2,454.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270.78 : 6,401.79 = 1,637.58 : x
  2. Step 2: Convert to fraction form
    4,270.78/6,401.79 = 1,637.58/x
  3. Step 3: Cross multiply
    4,270.78x = 6,401.79 × 1,637.58
  4. Step 4: Simplify right side
    4,270.78x = 10,483,443.27
  5. Step 5: Solve for x
    x = 10,483,443.27/4,270.78
  6. Step 6: Final answer
    x = 2,454.69

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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.