Home / 5,131.02-7,696.58-1,620.96

Finding the Fourth Proportional to 5,131.02, 7,696.58 and 1,620.96

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Solution

The fourth proportional to 5,131.02, 7,696.58 and 1,620.96 is: 2,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.02 : 7,696.58 = 1,620.96 : x
  2. Step 2: Convert to fraction form
    5,131.02/7,696.58 = 1,620.96/x
  3. Step 3: Cross multiply
    5,131.02x = 7,696.58 × 1,620.96
  4. Step 4: Simplify right side
    5,131.02x = 12,475,848.32
  5. Step 5: Solve for x
    x = 12,475,848.32/5,131.02
  6. Step 6: Final answer
    x = 2,431.46

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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.