Home / 5,076.79-7,005.30-2,838.58

Finding the Fourth Proportional to 5,076.79, 7,005.30 and 2,838.58

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Solution

The fourth proportional to 5,076.79, 7,005.30 and 2,838.58 is: 3,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.79 : 7,005.30 = 2,838.58 : x
  2. Step 2: Convert to fraction form
    5,076.79/7,005.30 = 2,838.58/x
  3. Step 3: Cross multiply
    5,076.79x = 7,005.30 × 2,838.58
  4. Step 4: Simplify right side
    5,076.79x = 19,885,104.47
  5. Step 5: Solve for x
    x = 19,885,104.47/5,076.79
  6. Step 6: Final answer
    x = 3,916.87

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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.