Home / 3,877.34-5,815.87-1,686.07

Finding the Fourth Proportional to 3,877.34, 5,815.87 and 1,686.07

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Solution

The fourth proportional to 3,877.34, 5,815.87 and 1,686.07 is: 2,529.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.34 : 5,815.87 = 1,686.07 : x
  2. Step 2: Convert to fraction form
    3,877.34/5,815.87 = 1,686.07/x
  3. Step 3: Cross multiply
    3,877.34x = 5,815.87 × 1,686.07
  4. Step 4: Simplify right side
    3,877.34x = 9,805,945.18
  5. Step 5: Solve for x
    x = 9,805,945.18/3,877.34
  6. Step 6: Final answer
    x = 2,529.04

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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.