Home / 5,583.72-8,375.32-1,688

Finding the Fourth Proportional to 5,583.72, 8,375.32 and 1,688

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Solution

The fourth proportional to 5,583.72, 8,375.32 and 1,688 is: 2,531.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,583.72 : 8,375.32 = 1,688 : x
  2. Step 2: Convert to fraction form
    5,583.72/8,375.32 = 1,688/x
  3. Step 3: Cross multiply
    5,583.72x = 8,375.32 × 1,688
  4. Step 4: Simplify right side
    5,583.72x = 14,137,540.16
  5. Step 5: Solve for x
    x = 14,137,540.16/5,583.72
  6. Step 6: Final answer
    x = 2,531.92

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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.