Home / 3,175.95-4,762.80-1,326.09

Finding the Fourth Proportional to 3,175.95, 4,762.80 and 1,326.09

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Solution

The fourth proportional to 3,175.95, 4,762.80 and 1,326.09 is: 1,988.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.95 : 4,762.80 = 1,326.09 : x
  2. Step 2: Convert to fraction form
    3,175.95/4,762.80 = 1,326.09/x
  3. Step 3: Cross multiply
    3,175.95x = 4,762.80 × 1,326.09
  4. Step 4: Simplify right side
    3,175.95x = 6,315,901.45
  5. Step 5: Solve for x
    x = 6,315,901.45/3,175.95
  6. Step 6: Final answer
    x = 1,988.67

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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.