Home / 3,508.98-5,263.59-911.93

Finding the Fourth Proportional to 3,508.98, 5,263.59 and 911.93

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Solution

The fourth proportional to 3,508.98, 5,263.59 and 911.93 is: 1,367.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.98 : 5,263.59 = 911.93 : x
  2. Step 2: Convert to fraction form
    3,508.98/5,263.59 = 911.93/x
  3. Step 3: Cross multiply
    3,508.98x = 5,263.59 × 911.93
  4. Step 4: Simplify right side
    3,508.98x = 4,799,999.31
  5. Step 5: Solve for x
    x = 4,799,999.31/3,508.98
  6. Step 6: Final answer
    x = 1,367.92

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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.