Home / 2,963.78-4,089.98-1,637.39

Finding the Fourth Proportional to 2,963.78, 4,089.98 and 1,637.39

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Solution

The fourth proportional to 2,963.78, 4,089.98 and 1,637.39 is: 2,259.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.78 : 4,089.98 = 1,637.39 : x
  2. Step 2: Convert to fraction form
    2,963.78/4,089.98 = 1,637.39/x
  3. Step 3: Cross multiply
    2,963.78x = 4,089.98 × 1,637.39
  4. Step 4: Simplify right side
    2,963.78x = 6,696,892.35
  5. Step 5: Solve for x
    x = 6,696,892.35/2,963.78
  6. Step 6: Final answer
    x = 2,259.58

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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.