Home / 3,135.21-4,699.77-1,491.32

Finding the Fourth Proportional to 3,135.21, 4,699.77 and 1,491.32

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Solution

The fourth proportional to 3,135.21, 4,699.77 and 1,491.32 is: 2,235.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.21 : 4,699.77 = 1,491.32 : x
  2. Step 2: Convert to fraction form
    3,135.21/4,699.77 = 1,491.32/x
  3. Step 3: Cross multiply
    3,135.21x = 4,699.77 × 1,491.32
  4. Step 4: Simplify right side
    3,135.21x = 7,008,837.50
  5. Step 5: Solve for x
    x = 7,008,837.50/3,135.21
  6. Step 6: Final answer
    x = 2,235.52

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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.