Home / 7,088.78-10,629.90-2,157.32

Finding the Fourth Proportional to 7,088.78, 10,629.90 and 2,157.32

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Solution

The fourth proportional to 7,088.78, 10,629.90 and 2,157.32 is: 3,234.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,088.78 : 10,629.90 = 2,157.32 : x
  2. Step 2: Convert to fraction form
    7,088.78/10,629.90 = 2,157.32/x
  3. Step 3: Cross multiply
    7,088.78x = 10,629.90 × 2,157.32
  4. Step 4: Simplify right side
    7,088.78x = 22,932,095.87
  5. Step 5: Solve for x
    x = 22,932,095.87/7,088.78
  6. Step 6: Final answer
    x = 3,234.98

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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.