Home / 3,175.90-4,762.99-1,326.63

Finding the Fourth Proportional to 3,175.90, 4,762.99 and 1,326.63

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Solution

The fourth proportional to 3,175.90, 4,762.99 and 1,326.63 is: 1,989.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.90 : 4,762.99 = 1,326.63 : x
  2. Step 2: Convert to fraction form
    3,175.90/4,762.99 = 1,326.63/x
  3. Step 3: Cross multiply
    3,175.90x = 4,762.99 × 1,326.63
  4. Step 4: Simplify right side
    3,175.90x = 6,318,716.29
  5. Step 5: Solve for x
    x = 6,318,716.29/3,175.90
  6. Step 6: Final answer
    x = 1,989.59

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1.5x scale

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.