Home / 5,051.32-7,580.98-2,131.64

Finding the Fourth Proportional to 5,051.32, 7,580.98 and 2,131.64

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Solution

The fourth proportional to 5,051.32, 7,580.98 and 2,131.64 is: 3,199.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,051.32 : 7,580.98 = 2,131.64 : x
  2. Step 2: Convert to fraction form
    5,051.32/7,580.98 = 2,131.64/x
  3. Step 3: Cross multiply
    5,051.32x = 7,580.98 × 2,131.64
  4. Step 4: Simplify right side
    5,051.32x = 16,159,920.21
  5. Step 5: Solve for x
    x = 16,159,920.21/5,051.32
  6. Step 6: Final answer
    x = 3,199.15

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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.