Home / 5,287-7,931.62-1,588.96

Finding the Fourth Proportional to 5,287, 7,931.62 and 1,588.96

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Solution

The fourth proportional to 5,287, 7,931.62 and 1,588.96 is: 2,383.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287 : 7,931.62 = 1,588.96 : x
  2. Step 2: Convert to fraction form
    5,287/7,931.62 = 1,588.96/x
  3. Step 3: Cross multiply
    5,287x = 7,931.62 × 1,588.96
  4. Step 4: Simplify right side
    5,287x = 12,603,026.92
  5. Step 5: Solve for x
    x = 12,603,026.92/5,287
  6. Step 6: Final answer
    x = 2,383.78

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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.