Home / 3,175.12-4,762.64-1,419.66

Finding the Fourth Proportional to 3,175.12, 4,762.64 and 1,419.66

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Solution

The fourth proportional to 3,175.12, 4,762.64 and 1,419.66 is: 2,129.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.12 : 4,762.64 = 1,419.66 : x
  2. Step 2: Convert to fraction form
    3,175.12/4,762.64 = 1,419.66/x
  3. Step 3: Cross multiply
    3,175.12x = 4,762.64 × 1,419.66
  4. Step 4: Simplify right side
    3,175.12x = 6,761,329.50
  5. Step 5: Solve for x
    x = 6,761,329.50/3,175.12
  6. Step 6: Final answer
    x = 2,129.47

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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.