Home / 3,239.86-4,468.56-2,792.51

Finding the Fourth Proportional to 3,239.86, 4,468.56 and 2,792.51

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Solution

The fourth proportional to 3,239.86, 4,468.56 and 2,792.51 is: 3,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.86 : 4,468.56 = 2,792.51 : x
  2. Step 2: Convert to fraction form
    3,239.86/4,468.56 = 2,792.51/x
  3. Step 3: Cross multiply
    3,239.86x = 4,468.56 × 2,792.51
  4. Step 4: Simplify right side
    3,239.86x = 12,478,498.49
  5. Step 5: Solve for x
    x = 12,478,498.49/3,239.86
  6. Step 6: Final answer
    x = 3,851.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.