Home / 3,013.60-4,158.54-1,687

Finding the Fourth Proportional to 3,013.60, 4,158.54 and 1,687

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Solution

The fourth proportional to 3,013.60, 4,158.54 and 1,687 is: 2,327.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.60 : 4,158.54 = 1,687 : x
  2. Step 2: Convert to fraction form
    3,013.60/4,158.54 = 1,687/x
  3. Step 3: Cross multiply
    3,013.60x = 4,158.54 × 1,687
  4. Step 4: Simplify right side
    3,013.60x = 7,015,456.98
  5. Step 5: Solve for x
    x = 7,015,456.98/3,013.60
  6. Step 6: Final answer
    x = 2,327.93

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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.