Home / 5,787.05-8,678.75-2,088.28

Finding the Fourth Proportional to 5,787.05, 8,678.75 and 2,088.28

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Solution

The fourth proportional to 5,787.05, 8,678.75 and 2,088.28 is: 3,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.05 : 8,678.75 = 2,088.28 : x
  2. Step 2: Convert to fraction form
    5,787.05/8,678.75 = 2,088.28/x
  3. Step 3: Cross multiply
    5,787.05x = 8,678.75 × 2,088.28
  4. Step 4: Simplify right side
    5,787.05x = 18,123,660.46
  5. Step 5: Solve for x
    x = 18,123,660.46/5,787.05
  6. Step 6: Final answer
    x = 3,131.76

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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.